[Gastrointestinal biopsy by means of aspiration in pediatrics. I. Investigative and clinical value. Technic and early results].
D001706:Biopsy; D041981:Gastrointestinal Tract / Q000473:pathology*; D006801:Humans; D010372:Pediatrics / Q000175:diagnosis*
BIOPSY; GASTROINTESTINAL SYSTEM/pathology; PEDIATRICS/diagnosis