title: Nutritional vitamin B12 deficiency and folate deficiency in an adolescent patient presenting with anemia, weight loss, and poor school performance.
authors.affiliation: Division of Adolescent/Young Adult Medicine, Children's Hospital, Harvard Medical School, Boston Massachusets, USA.
authors.forename: A B
authors.initials: AB
authors.lastname: Middleman
authors.forename: S J
authors.initials: SJ
authors.lastname: Emans
authors.forename: J
authors.initials: J
authors.lastname: Cox
mesh_terms: D000293:Adolescent; D017195:Adolescent Nutritional Physiological Phenomena; D000749:Anemia, Megaloblastic / Q000209:etiology*; D004522:Educational Status; D005494:Folic Acid Deficiency / Q000097:blood / Q000150:complications*; D006801:Humans; D008297:Male; D008569:Memory Disorders / Q000209:etiology*; D015596:Nutrition Assessment; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000150:complications*; D015431:Weight Loss