title: Are there different types of Crohn's disease?
authors.affiliation: Department of Gastroenterology, Mount Sinai School of Medicine, New York, USA.
authors.forename: David B
authors.initials: DB
authors.lastname: Sachar
mesh_terms: D000293:Adolescent; D000328:Adult; D017668:Age of Onset; D002648:Child; D003424:Crohn Disease / Q000145:classification* / Q000473:pathology*; D006801:Humans; D007422:Intestines / Q000473:pathology*; D010641:Phenotype; D011379:Prognosis; D012720:Severity of Illness Index; D055815:Young Adult