Ulcerative colitis in childhood.
D000293:Adolescent; D000367:Age Factors; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000628:therapy; D004035:Diet Therapy; D005260:Female; D005773:Gastroscopy; D006801:Humans; D007223:Infant; D008297:Male; D011859:Radiography; D012737:Sex Factors