title: From Crohn to Crohn's disease: 1979 an epidemiologic study in New York City.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D003093:Colitis, Ulcerative / Q000453:epidemiology; D003424:Crohn Disease / Q000453:epidemiology* / Q000235:genetics; D005006:Ethnicity; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009519:New York City