title: Ulcerative colitis in Finland. I. Cases treated at central hospitals, 1956-1967.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001168:Arthritis / Q000209:etiology; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000150:complications / Q000175:diagnosis / Q000453:epidemiology* / Q000601:surgery; D003967:Diarrhea / Q000209:etiology; D004700:Endocrine System Diseases / Q000150:complications; D005260:Female; D005387:Finland; D005401:Fissure in Ano / Q000209:etiology; D005767:Gastrointestinal Diseases / Q000150:complications; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D007416:Intestinal Perforation / Q000209:etiology; D007674:Kidney Diseases / Q000150:complications; D008107:Liver Diseases / Q000209:etiology; D008297:Male; D001523:Mental Disorders / Q000150:complications; D008722:Methods; D008875:Middle Aged; D012424:Rural Population; D012737:Sex Factors