title: Ulcerative colitis. A clinical study of 399 patients.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000453:epidemiology / Q000209:etiology / Q000473:pathology; D005191:Family Characteristics; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012606:Scotland; D012737:Sex Factors; D013997:Time Factors