title: Vitamin B12 deficiency in the elderly: Think of iatrogenic intervention in elderly patients.
authors.affiliation: Department of Internal Medicine and Geriatrics, University Hospital of Reims, Reims, France.
authors.forename: Abrar-Ahmad
authors.initials: AA
authors.lastname: Zulfiqar
authors.affiliation: Department of Internal Medicine and Geriatrics, University Hospital of Reims, Reims, France.
authors.forename: Paul
authors.initials: P
authors.lastname: Blazejczyk
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D015331:Cohort Studies; D005500:Follow-Up Studies; D015577:Geriatric Assessment / Q000379:methods; D006801:Humans; D007049:Iatrogenic Disease; D008297:Male; D054328:Proton Pump Inhibitors / Q000008:administration & dosage / Q000009:adverse effects*; D012189:Retrospective Studies; D018570:Risk Assessment; D014806:Vitamin B 12 Deficiency / Q000453:epidemiology* / Q000209:etiology* / Q000503:physiopathology
chemical_list: D054328:Proton Pump Inhibitors