title: Vitamin B12 deficiency in patients with upper gastrointestinal symptoms in the Mekong Delta, Vietnam.
authors.forename: T
authors.initials: T
authors.lastname: v Nguyen
authors.forename: M G H
authors.initials: MG
authors.lastname: van Oijen
authors.forename: M J R
authors.initials: MJ
authors.lastname: Janssen
authors.forename: R J F
authors.initials: RJ
authors.lastname: Laheij
authors.forename: J B M J
authors.initials: JB
authors.lastname: Jansen
authors.forename: H
authors.initials: H
authors.lastname: van Asten
mesh_terms: D000328:Adult; D005260:Female; D005767:Gastrointestinal Diseases / Q000150:complications* / Q000175:diagnosis; D016481:Helicobacter Infections / Q000150:complications*; D016480:Helicobacter pylori; D006801:Humans; D008297:Male; D008875:Middle Aged; D014744:Vietnam; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis / Q000453:epidemiology* / Q000382:microbiology