[The application of intestinal biopsy to occupational diseases. I. Definition of the problem and methodological premise].
D001706:Biopsy; D005762:Gastroenterology / Q000175:diagnosis*; D006801:Humans; D007422:Intestines / Q000473:pathology*; D009784:Occupational Diseases / Q000175:diagnosis*
GASTROENTEROLOGY/diagnosis; INTESTINES/pathology; OCCUPATIONAL DISEASES/diagnosis