作者单位:
Johns Hopkins Sch Publ Hlth, Dept Hlth Policy & Management, 624 North Broadway, Baltimore, MD 21205
[1]
Columbia Univ, Dept Epidemiol, New York, NY USA
[2]
Univ Penn, Div Gen Internal Med, Philadelphia, PA 19104 USA
[3]
Univ Penn, Dept Biostat & Epidemiol, Philadelphia, PA 19104 USA
[4]
Johns Hopkins Sch Med, Div Gen Internal Med, Baltimore, MD USA
[5]
发布时间
2018-03-07