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42篇 您的检索式:作者名="Fengying Liu"
    题名 作者 年代 出处 被引量
1Autoantibodies Highly Increased in Patients with Thyroid Dysfunction显示文摘To evaluate the significance of antithyroid antibodie levels, five hundred and twenty-six patients with thyroid diseases and 292 health subjects from Yuci District, Shanxi Province, China, were studied. Serum levels were determined for thyroid hormone receptor antibody (TRAb), microsomal antibody (TMAb) and thyroglobulin antibody (TGAb). Among patients, the percentages for nodular goiter and thyroid adenoma, Graves’ disease, and Hashimoto’s thyroiditis are 44.1%, 19.6% and 17.7%, respectively. The ratios of female to male were 2.0 to 15.6. Antibody-positive patients for TMAb, TGAb and TRAb were detectable as 94.6%, 76.3% and 20.4% for Hashimoto’s thyroiditis, and 40.0%, 30.0% and 90.3% for Graves’s disease. In conclusion, the high levels of the TRAb in Graves’ disease, and those of the TGAb/TMAb in Hashimoto’s thyroiditis and idiopathic hypothyroidism are meaningful for characterizing the epidemiological basis of the diseases and for using as prognostic indicators for the relapse in individual patients.Weibin Wen Fengying Liu 2007Cellular & Molecular Immunology2007,4,3:8
2Promoting effect of tantalum and antimony additives on deNOx performance of Ce3Ta3SbOx for NH3-SCR reaction and DRIFT studies显示文摘A superior Ce-Ta-Sb composite oxide catalyst prepared using homogeneous precipitation method exhibited excellent deNOx efficiency and nearly 100% N_2 selectivity with broad operation temperature window and better resistance to higher space velocity, meanwhile strong resistance to H_2 O and SO_2. This catalyst was systematically characterized using XRD, N_2 adsorption, SEM, TEM, XPS, ESR, Raman, H_2-TPR,NH3-TPD and in situ DRIFTS. There exists a synergistic effect between Ce, Ta and Sb species. It is further indicated that the prominent deNOx performance of the Ce3 Ta3 SbOx catalyst is attributed to the elevated Ce3+ concentrations, abundant active surface oxygen species, as well as surface acidity and reducibility,which is closely linked with the synergistic effect between Ce, Sb and Ta species. Results from DRIFTS reveal that the reaction mechanism of surface-adsorbed NH3 and NO_x species is linked to temperature,the L-H mechanism mainly occurs at low temperature(<300 ℃),while the E-R mechanism occurs at high temperature(>300 ℃). Overall,these findings indicate that Ce3 Ta3 SbOx is promising for NO_x practical abatement.Ning Liu Jingyu Wang Fengying Wang Jun Liu 2018Journal of Rare Earths2018,36,6:7
3Differentiation of rat iPS cells and ES cells into granulosa cell-like cells in vitro显示文摘早熟的卵巢的失败(POF ) 是卵巢的滤泡的早熟的弄空在 40 岁前描绘的一个卵巢的缺点,代表女不孕的一个主要原因。干细胞为 POF 提供一个潜在的处理的可能性。在这研究,老鼠胚胎的干细胞(转换字符) 和导致的 pluripotent 干细胞(iPSCs ) 与 granulosa 房间(GC ) 是 co 有教养的区分到象 GC 一样房间。放射性免疫测定分析的 estradiol (E2 ) 的水平证明 co 有教养的老鼠 iPSCs 和转换字符的文化上层清液的 E2 集中以一种时间依赖者方式增加了,与有一个相反的趋势的 GC 组相比。刺激滤泡的荷尔蒙受体(FSHR ) 的表示被 immunostaining 证实。这些结果显示了那老鼠 iPSCs,转换字符有效地通过间接 cell-to-cell 接触被导致到象 GC 一样房间。实时聚合酶链反应被执行在 POF 分析标记基因的表示水平,包括 BMP15, FMR1, FSHR, INHA, AMH, NOBOX, FOXO3, EIF2B, FIGLA,和 GDF9。BMP15, FSHR, INHA, AMH, NOBOX,和 GDF9 基因在 iPSCs 和与与不是 co 有教养的房间比较的 GC co 有教养的转换字符是显著地起来调整的。因此,这里,我们表明了一个可得到的方法为 POF 的可能的房间治疗在 vitro 区分老鼠 iPSCs 和转换字符进象 GC 一样房间。Juan Zhang Hui Li Zhao Wu XiaoJun Tan Fengying Liu Xianghong Huang Xiaoling Fang 2013Acta Biochimica et Biophysica Sinica2013,45,4:7
4Effects of soaking process on arsenic and other mineral elements in brown rice显示文摘One of the main food crops in the world,rice can accumulate high levels of arsenic from flooded paddy soils,which seriously threatens human health.Soaking,a common processing method for brown rice products,especially for brown rice noodles,was investigated in this study.Japonica rice(Dao Hua Xiang No.2)and Indica rice(Ye Xiang You No.3)were selected for studying the effects of soaking on arsenic concentrations,species,and distributions.Results revealed that soaking can efficiently remove arsenic in these two rice varieties,and the main part of removal is endosperm with the maximal rate of about 40%.Inorganic arsenic(I-As)(about 85%)is the main species of arsenic reduction.Meanwhile,the variations of four other elements(i.e.,Mg,Ca,Zn,and Fe)were analyzed.Collectively,the findings of this study indicate that soaking can efficiently remove arsenic in brown rice under controlled soaking conditions,which thereby reduces the arsenic intake for brown rice customers.Fan Zhang Fengying Gu Huili Yan Zhenyan He Bolun Wang Hao Liu Tingting Yang Feng Wang 2020Food Science and Human Wellness2020,9,2:5
5The effects of modulation period,modulation ratio,and deposition temperature on microstructure and mechanical properties of ZrB_2/W multilayers显示文摘Monolithic ZrB2,W coatings and ZrB2/W multilayers with different modulation periods and modulation ratios were synthesized by ion beam assisted deposition at room temperature and 400°C.X-ray diffraction (XRD),scanning electron microscopy (SEM),surface profiler,and nanoindention were employed to investigate the influences of the deposition temperature and the modulation period on the growth,textures,interface structure,and mechanical properties of the multilayers.The results indicated that the multilayer with modulation period of 13 nm synthesized at room temperature possessed a higher hardness of 23.8 GPa.Deposition temperature gave a significant contribution to mechanical property enhancement.The 400°C-deposition temperature led to a maximum hardness and elastic modulus value of 32.1 and 399.1 GPa for ZrB2/W multilayer with a modulation period of 6.7 nm.Its critical load increased to 42.8 mN and residual stress decreased to -0.7 GPa.A higher deposition temperature can cause an increase in interfacial atomic mixture and mobility of surface species,which induceds an increase in areal atomic density and dislocation pinning.These results as well as small nanoscale grain sizes should be related to hardness increase.LIU MengYin,TAN Ming,LIU GuangQing,WANG HaiYuan,XUE FengYing,DENG XiangYun & LI DeJun College of Physics and Electronic Information Science,Tianjin Normal University,Tianjin 300387,China 2010Science China(Technological Sciences)2010,53,9:4
6Understanding the spatial representativeness of air quality monitoring network and its application to PM_(2.5)in the China's Mainland显示文摘Air pollution has seriously endangered human health and the natural ecosystem during the last decades.Air quality monitoring stations(AQMS)have played a critical role in providing valuable data sets for recording regional air pollutants.The spatial representativeness of AQMS is a critical parameter when choosing the location of stations and assessing effects on the population to long-term exposure to air pollution.In this paper,we proposed a methodological framework for assessing the spatial representativeness of the regional air quality monitoring network and applied it to ground-based PM_(2.5)observation in the mainland of China.Weighted multidimensional Euclidean distance between each pixel and the stations was used to determine the representativeness of the existing monitoring network.In addition,the K-means clustering method was adopted to improve the spatial representativeness of the existing AQMS.The results showed that there were obvious differences among the representative area of 1820 stations in the mainland of China.The monitoring stations could well represent the PM_(2.5)spatial distribution of the entire region,and the effectively represented area(i.e.the area where the Euclidean distance between the pixels and the stations was lower than the average value)accounted for 67.32%of the total area and covered 93.12%of the population.Forty additional stations were identified in the Northwest,North China,and Northeast regions,which could improve the spatial representativeness by 14.31%.Ling Su Chanchan Gao Xiaoli Ren Fengying Zhang Shanshan Cao Shiqing Zhang Tida Chen Mengqing Liu Bingchuan Ni Min Liu 2022Geoscience Frontiers2022,13,3:3
7Seismic studies of coal bed methane content in the west coal mining area of Qinshui Basin显示文摘The coal bed methane content(CBMC)in the west mining area of Jincheng coalfield,southeastern Qjnshui Basin,is studied based on seismic data and well-logs together with laboratory measurements.The results show that the Shuey approximation has better adaptability according to the Zoeppritz equation result;the designed fold number for an ordinary seismic data is sufficient for post-stack data but insufficient for pre-stack data regarding the signal to noise ratio(SNR).Therefore a larger grid analysis was created in order to improve the SNR.The velocity field created by logging is better than that created by stack velocity in both accuracy and effectiveness.A reasonable distribution of the amplitude versus offset(AVO)attributes can be facilitated by taking the AVO response from logging as a standard for calibrating the amplitude distribution.Some AVO attributes have a close relationship with CBMC.The worst attribute is polarization magnitude,for which the correlation coefficient is 0.308;and the best attribute is the polarization product from intercept,of which the correlation coefficient is-0.8136.CBMC predicted by AVO attributes is better overall than that predicted by direct interpolation of CBMC;the validation error of the former is 14.47%,which is lower than that of the latter 23.30%.CBMC of this area ranges from2.5 m^3/t to 22 m^3/t.Most CBMC in the syncline is over 10m^3/t,but it is below 10m^3/t in the anticline;on the whole,CBMC in the syncline is higher than that in anticline.Zou Guangui Peng Suping Yin Caiyun Xu Yanyong Chen Fengying Liu Jinkai 2013International Journal of Mining Science and Technology2013,23,6:2
8High pressure effects on the crystal structure andelectric conductivity of perovskite like (Ca/Sr)_2CuO_2Cl_2 compounds显示文摘The crystal structure stability as well as electric conductance of (Sr/Ca)_2CuO_2Cl_2 compound with K_2NiF_4 structure was investigated up to 31 GPa using diamond anvil technique. It seems that (Sr/Ca)_2CuO_2Cl_2 is quite stable under pressure but with obvious anisotropic compressibility. The equation of state (EOS) obtained shows relative large bulk modulus.LIU QingQing WANG FuRen LI FengYing CHEN LiangChen YU RiCheng JIN ChangQing LI YanChun LIU Jing 2008Chinese Science Bulletin2008,53,18:2
9Vinyl-functionalized multicolor benzothiadiazoles: design,synthesis, crystal structures and mechanically-responsive performance显示文摘Benzothiadiazole(BTD) has been extensively used as a building block in optical materials. In this work, a class of π-conjugated BTD-based luminogens BTD-685, BTD-580, BTD-675 and BTD-565 were designed by varying donor units and facilely synthesized by Heck coupling reaction. It was found that their emission in solid state covered the regio from orange, red to near infrared fluorescence. Investigation on photo-physical property manifested that they had strong solvatochromic behavior except symmetric 2-vinylpyridine substituted BTD-565. Crystal X-ray diffraction analysis revealed that they involved in multi weak intermolecular interactions. And loose molecular packing implied that they can be easily rearranged under external force stimuli.Indeed, all compounds showed reversible mechanically-responsive behavior in solid state. Interestingly, the vinylpyridinecontaining BTD-565 exhibited hypochromatic mechanochromic behavior, whereas others showed bathochromic mechanochromism behavior. It was worth mentioning that BTD-675 had self-recovery behavior after grinding. The powder X-ray diffraction study showed that these chromic processes may be mainly attributed to the reversible morphological changes between crystalline and amorphous phase upon grinding or fuming. These observations suggested that the vinyl-functionalized benzothiadiazoles can be considered as a type of excellent candidates in mechanically-responsive chromic materials.Jianhua Chen Fengying Ye Yan Lin Zhao Chen Shenghua Liu Jun Yin 2019Science China Chemistry2019,62,4:2
10PC4 serves as a negative regulator of skin wound healing in mice显示文摘Background:Human positive cofactor 4(PC4)was initially characterized as a multifunctional transcriptional cofactor,but its role in skin wound healing is still unclear.The purpose of this study was to explore the role of PC4 in skin wound healing through PC4 knock-in mouse model.Methods:A PC4 knock-in mouse model(PC4^(+/+))with a dorsal full-thickness wound was used to investigate the biological functions of PC4 in skin wound healing.Quantitative PCR,Western blot analysis and immunohistochemistry were performed to evaluate the expression of PC4;Sirius red staining and immunofluorescence were performed to explore the change of collagen deposition and angiogenesis.Proliferation and apoptosis were detected using Ki67 staining and TUNEL assay.Primary dermal fibroblasts were isolated from mouse skin to perform cell scratch experiments,cck-8 assay and colony formation assay.Results:The PC4^(+/+)mice were fertile and did not display overt abnormalities but showed an obvious delay in cutaneous healing of dorsal skin.Histological staining showed insufficient re-epithelialization,decreased angiogenesis and collagen deposition,increased apoptosis and decreased cell proliferation in PC4^(+/+)skin.Our data also showed decreased migration rate and proliferation ability in cultured primary fibroblasts from PC4^(+/+)mice in vitro.Conclusions:This study suggests that PC4 might serve as a negative regulator of skin wound healing in mice.Fengying Liao Long Chen Peng Luo Zhongyong Jiang Zelin Chen Ziwen Wang Chi Zhang Yu Wang JintaoHe Qing Wang Yawei Wang Lang Liu Yu Huang Huilan Wang Qingzhi Jiang Min Luo YiboGan Yunsheng Liu Yang Wang Jie Wu Wentao Xie Zhuo Cheng Yali Dai Jialun Li Zujuan Liu Fan Yang Chunmeng Shi 2020Burns & Trauma2020,8,1:1
11High-pressure and high-tem-perature synthesis of MgB_2 and its superconductivity显示文摘The single-phase sample of MgB2 was prepared successfully at the temperature of 900℃ and under the pressure of 3 GPa. The structure of the sample was investigated using powder X-ray diffraction and Rietveld analysis. The results show that the structure of the sample belongs to the hexagonal structure with space group of P6/mmm, a=3.0861(5) A, c=3.5222(8) A. The magnetic and resistance measurements indicate that the superconducting transition temperature Tc is 39 K.ZHU Jialin, LI Shaochun, YU Richeng, LI Fengying LIU Zhengxing & JIN ChangqingLaboratory for Extreme Condition Physics, Institute of Physics, Center for Condensed Matter Physcis and Beijing High Pressure Research Center, Chinese Academy of Sciences, Beijing 100080, China 2001Chinese Science Bulletin2001,46,22:1
12MAPK/ERK signal pathway involved expression of COX -2 and VEGF by IL - 113 induced in human endometriosis stromal cells in vitro 显示文摘HUANG Fengying CAO Jing LIU Qiuhong 2013International Journal of Clinical and Experimental Pathology2013,6,10:1
13Structural optimization and evaluation of butenolides as potent antifouling agents: modification of the side chain affects the biological activities of compounds显示文摘Yongxin Li Fengying Zhang Ying Xu Kiyotaka Matsumura Zhuang Han Lingli Liu Wenhan Lin Yanxing Jia Pei-Yuan Qian 2012Biofouling2012,,8:1
14CgPl7A1 T-34C polymorphism is not associated with endometrial cancerrisk显示文摘Xueying gang Aihua Feng Fengying Liu etal 2013Tumor Biology2013,34,5:1
15微血管内皮大空泡形成对微循环的影响显示文摘大鼠肠系膜微血管缺血再灌后内皮细胞出现明显改变,缺血再灌后30min~1h细静脉、集合毛细血管内除有白细胞、血小板的粘附以及红细胞聚集、血管内皮水肿外,还发现血管内皮细胞的胞浆形成圆丘形的空泡。空泡从血管内壁内壁突入管腔,空泡直径10~30μm,多发生在直径20~70μm的细动脉,静脉内也可出现,但不如动脉多。在同一根血管内可同时出现几个空泡,大的空泡几乎堵塞血管腔。严重者几个空泡出现在同一管腔的周围,造成管腔的堵塞,使血细胞不能顺利通过。结果表明血管内皮大空泡的形成将阻碍血液的流动,加重微循环的障碍和血管周围组织细胞的损伤。Liu Yuying Zhao Xiumei Liu Fengying et al(Lab of Microcirculation. General Hospital of Chinese PLA, Beijing 100853) 1999微循环学杂志1999,9,3:1
16Electrofluorochromic imaging analysis of dopamine release from living PC12 cells with bipolar nanoelectrodes array显示文摘The coupling of bipolar electrode(BPE)arrays and electrofluorochromic(EFC)imaging has exhibited great abilities in bioanalysis.However,the imaging resolution and analytical performance are hampered by the large size of the electrode and the rapid diffusion of EFC molecules on the electrode surface.Here,to address the challenges,bipolar nanoelectrodes(BPn E)array and in situ immobilization strategy of EFC molecules were proposed.Anodized aluminum oxide(AAO)template-assisted Au nanoelectrodes array with high density was fabricated as BPn E array for high spatial imaging resolution.By electrically polymerizing EFC molecules on the surface of single Au nanoelectrode,the rapid diffusion of EFC molecules on the electrode surface was not only avoided,but also realizing electrofluorescent imaging on an individual nanoelectrode.Using dopamine(DA)released from living PC12 cells as a model,the proposed strategy exhibited an ultra-high sensitivity for DA analysis with a detection limit of 0.45 nmol/L and the DA release amount from a single cell was calculated to be 0.13 pmol/L.Moreover,the dynamic change of DA release under the drug stimulation from living PC12 cells could also be monitored.Zhaoyan Tian Xiang Qin Fengying Shao Xiuxiu Li Zhi Wang Songqin Liu Yafeng Wu 2023Chinese Chemical Letters2023,34,1:1
17Front and Back contact engineering for high-efficient and low-cost hydrothermal derived Sb_(2)(S, Se)_(3) solar cells by using FTO/SnO_(2) and carbon显示文摘Antimony chalcogenide Sb_(2)(S, Se)_(3) is attracting a lot of attention as photovoltaic absorber owing to its rewarding photoelectric properties, low toxicity, and earth abundance. However, its device efficiency is still limited by the absorber material quality and device interface recombination. In this work, a fluorinedoped tin oxide(FTO) substrate with ultra-thin SnO_(2) layer and a low-cost stabilized carbon paste are introduced as a front and back contact layer respectively in Sb_(2)(S, Se)_(3) based planar solar cells. Over 5.2% efficiency is demonstrated in the structure of FTO/SnO_(2)/Cd S/Sb_(2)(S, Se)_3/Carbon/Ag, where the Sb_(2)(S, Se)_(3) is prepared by hydrothermal technique. The complementary device physics characterizations reveal that the interfacial recombination between TCO and Cd S is significantly suppressed by the introduction of ultra-thin SnO_(2) layer, which is profited from the leakage protection and bandgap offset engineering by its high resistivity and suitable conduction band minimum. Meanwhile, the successful adoption of the lowcost stabilized carbon as a back contact here shows an enormous potential to replace the conventional organic hole transport materials and noble metal. We hope this work can provide positive guidance to optimize Sb_(2)(S, Se)_(3) based planar solar cells in the future.Liquan Yao Limei Lin Hui Liu Fengying Wu Jianmin Li Shuiyuan Chen Zhigao Huang Guilin Chen 2020Journal of Materials Science & Technology2020,58,23:1
18A novel therapeutic vaccine based on graphene oxide nanocomposite for tumor immunotherapy显示文摘With an intensive understanding of the mechanism of immune system,developing a therapeutic tumor vaccine is one of the most perspective strategy of cancer immunotherapy.In this study,we report a facile approach to prepare graphene oxide(GO)-based therapeutic cancer-nanovaccine.The model antigen(ovalbumin,OVA)and adjuvant(CpG ODN),are conjugated with GO-PEI nanosheet through electrostatic interaction.The addition of PEG can improve biocompatibility and prevent nanoparticle aggregation.The prepared GO-based nanovaccine,GO-PEI-OVA-PEG-CpG,exhibits good biocompatibility and low toxicity both in vivo and in vitro.More importantly,it can efficiently induce the maturation of dendritic cells(DCs),the enhancement of antigen cross-presentation ability,and the amplification of cytokine production of immune cells.Impressively,this nanovaccine shows a remarkable therapeutic effect against preestablished B16-OVA-melanoma tumors,which can significantly inhibit tumor growth and prolong the survival time of the OVA-expressed tumor-bearing mice.Moreover,combining GO-PEI-OVA-PEG-CpG with NLG919,an IDO-1(indoleamine-2,3-dioxygenase)inhibitor which can regulate the tumor microenvironment,displays a synergistic therapeutic effect.These findings indicate the GO-PEI-OVA-PEG-CpG nanovaccine actively induces an antigen-specific antitumor immune response and it combined with NLG919 could achieve better therapeutic outcomes.Liming Zhang Lingfeng Xu Yi Wang Jieyu Liu Guanghong Tan Fengying Huang Nongyue He Zhuoxuan Lu 2022Chinese Chemical Letters2022,33,8:1
19Research on Cloud-Based Mass Log DataManagement Mecha- nism显示文摘Fengying Yang Huichao Liu Zhanping Zhao 2014JOURNAL OF COMPUTERS2014,9,6:1
20Multiplexed imaging of tumor immune microenvironmental markers in locally advanced or metastatic non-small-cell lung cancer characterizes the features of response to PD-1 blockade plus chemotherapy显示文摘Background:Although programmed cell death 1(PD-1)blockade plus chemotherapy can significantly prolong the progression-free survival(PFS)and overall survival(OS)in first-line settings in patients with driver-negative advanced non-small-cell lung cancer(NSCLC),the predictive biomarkers remain undetermined.Here,we investigated the predictive value of tumor immune microenvironmental marker expression to characterize the response features to PD-1 blockade plus chemotherapy.Methods:Tumor tissue samples at baseline were prospectively collected from 144 locally advanced or metastatic NSCLC patients without driver gene alterations who received camrelizumab plus chemotherapy or chemotherapy alone.Tumor immune microenvironmental markers,including PD-1 ligand(PDL1),CD8,CD68,CD4 and forkhead box P3,were assessed using multiplex immunofluorescence(mIF)assays.Kaplan-Meier curveswere used to determine treatment outcome differences according to their expression status.Mutational profiles were compared between tumors with distinct expression levels of these markers and their combinations.Results:Responders had significantly higher CD8/PD-L1(P=0.015)or CD68/PD-L1 co-expression levels(P=0.021)than non-responders in the camrelizumab plus chemotherapy group,while no difference was observed in the chemotherapy group.Patients with high CD8/PD-L1 or CD68/PD-L1 co-expression level was associated with significantly longer PFS(P=0.002,P=0.024;respectively)and OS(P=0.006,P=0.026;respectively)than those with low co-expression in camrelizumab plus chemotherapy group.When comparing survival in the camrelizumab plus chemotherapy with chemotherapy by CD8/PD-L1 co-expression stratification,significantly better PFS(P=0.003)and OS(P=0.032)were observed in high co-expression subgroups.The predictive value of CD8/PD-L1 and CD68/PD-L1 co-expression remained statistically significant for PFS and OS when adjusting clinicopathological features.Although the prevalence of TP53 or KRAS mutations was similar between patients with and without CD8/PD-L1 or CD68/PD-L1 co-expression,the positive groups had a significantly higher proportion of TP53/KRAS co-mutations than the negative groups(both 13.0%vs.0.0%,P=0.023).Notably,enriched PI3K(P=0.012)and cell cycle pathway(P=0.021)were found in the CD8/PD-L1 co-expression group.Conclusion:Tumor immune microenvironmental marker expression,especially CD8/PD-L1 or CD68/PD-L1 co-expression,was associated with the efficacy of PD-1 blockade plus chemotherapy as first-line treatment in patients with advanced NSCLC.Fengying Wu Tao Jiang Gongyan Chen Yunchao Huang Jianying Zhou Lizhu Lin Jifeng Feng Zhehai Wang Yongqian Shu Jianhua Shi Yi Hu Qiming Wang Ying Cheng Jianhua Chen Xiaoyan Lin Yongsheng Wang Jianan Huang Jiuwei Cui Lejie Cao Yunpeng Liu Yiping Zhang Yueyin Pan Jun Zhao LiPing Wang Jianhua Chang Qun Chen Xiubao Ren Wei Zhang Yun Fan Zhiyong He Jian Fang Kangsheng Gu Xiaorong Dong Tao Zhang Wei Shi Jianjun Zou Xuejuan Bai Shengxiang Ren Caicun Zhou 2022Cancer Communications2022,42,12:1
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