作者单位:
Veterans Affairs Medical Center, University of California, San Francisco, San Francisco, CA, United
[1]
Department of Epidemiology and Biostatistics, University of California, San Francisco, San
[2]
Department of Medicine, Harbor-UCLA Medical Center, Torrance, CA, United States
[3]
Department of Medicine, University of California, San Francisco, CA, United States
[4]
发布时间
2013-11-20