Transoral small-bowel biopsy as an aid in the diagnosis of malabsorption states.
D001706:Biopsy; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D007421:Intestine, Small / Q000473:pathology*; D007422:Intestines
BIOPSY; GASTROINTESTINAL DISEASES/diagnosis; INTESTINE, SMALL/pathology