[1] Univ Calif Los Angeles, Dept Pediat, Div Adolescent Med, Los Angeles, CA 90024 USA
[2] Harvard TH Chan Sch Publ Hlth, Dept Epidemiol, Boston, MA USA
[3] Harvard TH Chan Sch Publ Hlth, Ctr Biostat AIDS Res, Boston, MA USA
[4] Icahn Sch Med Mt Sinai, Bronx Lebanon Hosp Ctr, Div Pediat Infect Dis, New York, NY 10029 USA
[5] Ann & Robert H Lurie Childrens Hosp Chicago, Chicago, IL 60611 USA
[6] Baylor Coll Med, Houston, TX 77030 USA
[7] Bronx Lebanon Hosp Ctr, Bronx, NY 10456 USA
[8] Childrens Diagnost & Treatment Ctr, Ft Lauderdale, FL USA
[9] Boston Childrens Hosp, Boston, MA USA
[10] Jacobi Med Ctr, New York, NY USA
[11] Rutgers New Jersey Med Sch, Newark, NJ USA
[12] St Christophers Hosp Children, Philadelphia, PA 19133 USA
[13] St Jude Childrens Res Hosp, 332 N Lauderdale St, Memphis, TN 38105 USA
[14] San Juan Hosp, Dept Pediat, Farmington, NM USA
[15] Tulane Univ, Sch Med, New Orleans, LA 70118 USA
[16] Univ Calif San Diego, La Jolla, CA 92093 USA
[17] Univ Colorado, Hlth Sci Ctr, Denver, CO USA
[18] Univ Miami, Coral Gables, FL 33124 USA