[1] Harvard Univ, Ctr Biostat AIDS Res, TH Chan Sch Publ Hlth, Boston, MA 02115 USA
[2] Northwestern Univ, Feinberg Sch Med, Dept Obstet & Gynecol, Chicago, IL USA
[3] Northwestern Univ, Feinberg Sch Med, Dept Pediat, Chicago, IL USA
[4] Harvard Univ, TH Chan Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
[5] Harvard Univ, TH Chan Sch Publ Hlth, Dept Biostat, Boston, MA USA
[6] Univ Texas Hlth Sci Ctr Houston, Cizik Sch Nursing, Houston, TX USA
[7] Univ Southern Calif, Keck Sch Med, Dept Pediat, Los Angeles, CA USA
[8] Frontier Sci Fdn, Amherst, NY USA
[9] Westat Corp, Rockville, MD USA
[10] Populat Council, Ctr Biomed Res, New York, NY 10021 USA
[11] Northwestern Univ, Feinberg Sch Med, Dept Internal Med, Chicago, IL USA
[12] Northwestern Univ, Feinberg Sch Med, Dept Psychiat & Behav Sci, Chicago, IL USA
[13] Univ Calif Los Angeles, Los Angeles, CA USA
[14] Broward Hlth, Childrens Diagnost & Treatment Ctr, Ft Lauderdale, FL USA
[15] Baylor Texas Childrens Hosp, Houston, TX USA
[16] Univ Illinois, Dept Pediat, Chicago, IL USA
[17] Massachusetts Gen Hosp, Dept Internal Med, Boston, MA USA
[18] Massachusetts Gen Hosp, Dept Pediat, Boston, MA USA
[19] Harvard Univ, Dept Immunol & Infect Dis, TH Chan Sch Publ Hlth, Boston, MA USA