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