Full text: Available Index: LILACS (Americas) Main subject: Calcitriol / Premature Birth / Hypophosphatemia, Familial Type of study: Diagnostic study Limits: Infant Language: Spanish Journal: Med. infant Journal subject: Pediatrics Year: 2005 Type: Article Affiliation country: Argentina Institution/Affiliation country: Hospital de Pediatría Prof. Dr. Juan P. Garrahan/AR