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8篇 您的检索式：作者名="BARBRA A"

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		题名	作者	年代	出处	被引量
	1	Anti - lymphocyte globulin stimulates normal T cells to proliferate and to elease lymphokines in vitro: A study at the clonal level显示文摘	Barbra GC Schenone A Roncella S	1988	Blood1988，72，：	1
	2	Reflectarray Element Based on Aperture-Coupled Patches With Slots and Lines of Variable Length显示文摘	Carrasco E Barbra M Encinar J A	2007	IEEE Transactions on Antennas and Propagation2007，55，：	1
	3	Bandwidth Improvement in Large Reflectarrays by Using True-Time Delay显示文摘	Carrasco E Encinar J A Barbra M	2008	IEEE Transactions on Antennas and Propagation2008，56，：	1
	4	Statistical methods for determining the accuracy of quantitative polyrnerase chain reaction-based tests显示文摘	BARBRA A JAMES P SARAH B	2007	Statist Med2007，26，4：	1
	5	Bandwidth improve- ment in large reflectarrays by using true-time delay 显示文摘	Carrasco E Encinar J A Barbra M	2008	IEEE Transactions on Antennas and Propagation2008，56，：	1
	6	Aperture-coupled reflectarray element with wide range of phase delay 显示文摘	Carrasco E Barbra M Encinar J A	2006	Electronics Letters2006，42，12：	1
	7	Reflectarray ele- ment based on aperture-coupled patches with slots and lines of variable length显示文摘	Carrasco E Barbra M Eneinar J A	2007	IEEE Transactions on Anten- nas and Propagation2007，55，：	1
	8	Comparative Effectiveness of BNT162b2 and mRNA-1273 Vaccines in U.S. Veterans显示文摘Background:The messenger RNA(mRNA)-based vaccines BNT162b2 and mRNA-1273 are more than 90%effective against coronavirus disease 2019(Covid-19).However,their comparative effectiveness for a range of outcomes across diverse populations is unknown.Methods:We emulated a target trial using the electronic health records of U.S.veterans who received a first dose of the BNT162b2 or mRNA-1273 vaccine between January 4 and May 14,2021,during a period marked by predominance of the SARSCoV-2 B.1.1.7(alpha)variant.We matched recipients of each vaccine in a 1:1 ratio according to their risk factors.Outcomes included documented severe acute respiratory syndrome coronavirus 2(SARS-CoV-2)infection,symptomatic Covid-19,hospitalization for Covid-19,admission to an intensive care unit(ICU)for Covid-19,and death from Covid-19.We estimated risks using the Kaplan-Meier estimator.To assess the influence of the B.1.617.2(delta)variant,we emulated a second target trial that involved veterans vaccinated between July 1 and September 20,2021.	Barbra A Dickerman	2021	四川生理科学杂志2021，43，10：	0

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