title: Revised pediatric HIV classification system.
mesh_terms: D017088:AIDS-Related Opportunistic Infections / Q000145:classification / Q000473:pathology; D002648:Child; D002675:Child, Preschool; D015658:HIV Infections / Q000145:classification* / Q000473:pathology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn