1. From the Department of Epidemiology, Harvard School of Public Health, Boston, MA (K.P., G.R.S.); Center for Biostatistics in AIDS Research, Boston, MA (K.P., J.W., D.L.J., G.R.S., P.L.W.); Department of Pediatrics, Wayne State University School of Medicine, Children’s Hospital of Michigan, Detroit (S.E.L.); Division of Pediatric Clinical Research and Division of Pediatric Infectious Disease and Immunology, Department of Pediatrics, University of Miami Miller School of Medicine, Miami, FL (D.C.L., G...