1. Classification system for human immunodeficiency virus (HIV) infection in children under 13 years of age.;MMWR Morb Mortal Wkly Rep,1987
2. 1994 revised classification system for human immunodeficiency virus infection in children less than 13 years of age.;MMWR Morb Mortal Wkly Rep,1994
3. Difficulties in assigning human immunodeficiency virus-1 infection and seroreversion status in a cohort of HIV-exposed in children using serologic criteria established by the Centers for Disease Control and Prevention.;Simpson;Pediatrics,1994
4. Risk factors for mother-to-child transmission of HIV-1.;Lancet,1992
5. Seroreversion in human immunodeficiency virus-exposed but uninfected infants.;Chantry;Pediatr Infect Dis J,1995