论文数: 0 引用数: 0
h-index: 0
机构:
Univ Penn, Perelman Sch Med, Dept Biostat & Epidemiol, Ctr Clin Epidemiol & Biostat, Philadelphia, PA 19104 USA Univ Penn, Perelman Sch Med, Dept Biostat & Epidemiol, Ctr Clin Epidemiol & Biostat, Philadelphia, PA 19104 USA