作者单位：
Department of Emergency Medicine, San Francisco General Hospital, University of California, San
[1]
Department of Medicine, United States
[2]
VA Palo Alto Health Care System, Center for Healthcare Evaluation, Menlo Park, United States
[3]
Department of Biostatistics, UCLA Fielding School of Public Health, United States
[4]
Department of Emergency Medicine, Oregon Health and Science University, Portland, OR, United States
[5]
Department of Medicine, Division of Geriatrics, University of California, Los Angeles, Los Angeles
[6]
发布时间
2014-01-22
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