作者单位:
Univ Penn, Perelman Sch Med, Dept Biostat & Epidemiol, Philadelphia, PA 19104 USA
[1]
Univ Penn, Perelman Sch Med, Dept Med, Philadelphia, PA 19104 USA
[2]
Univ Penn, Perelman Sch Med, Dept Microbiol, Philadelphia, PA 19104 USA
[3]
发布时间
2015-10-31