title: Monozygotic twins with ulcerative colitis.
mesh_terms: D000328:Adult; D003093:Colitis, Ulcerative / Q000235:genetics*; D004200:Diseases in Twins / Q000235:genetics*; D005260:Female; D006801:Humans; D011247:Pregnancy; D014427:Twins; D014430:Twins, Monozygotic