[Vitamin B12 deficiency is prevalent and has serious sequelae].
Andrea
A
Flemmer
D000328:Adult; D002648:Child; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D009751:Nutritional Requirements; D011247:Pregnancy; D014805:Vitamin B 12 / Q000008:administration & dosage; D014806:Vitamin B 12 Deficiency / Q000150:complications / Q000453:epidemiology / Q000451:nursing*
D014805:Vitamin B 12