Peroral jejunal mucosal biopsy in dermatological and some non-diarrhoeal diseases.
D001706:Biopsy; D005767:Gastrointestinal Diseases / Q000473:pathology*; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology*; D007583:Jejunum / Q000473:pathology*; D011565:Psoriasis / Q000473:pathology; D012871:Skin Diseases / Q000473:pathology*