title: Does a Higher Prevalence for Primary Diagnosis of Crohn's Disease Involve the Upper Gastrointestinal Tract?
authors: *Department of Gastroenterology, West China Hospital of Sichuan University, Chengdu, People's Republic of China †Department of Gastroenterology, Nanchong Central Hospital, Nanchong, People's Republic of China.
authors: Lin
authors: L
authors: Cai
authors: Tao
authors: T
authors: Zhang
authors: Chunhui
authors: C
authors: Wang
mesh_terms: D003424:Crohn Disease; D006801:Humans; D015995:Prevalence; D041742:Upper Gastrointestinal Tract