title: Vitamin B12 deficiency presenting as pyrexia.
authors.forename: Kavita
authors.initials: K
authors.lastname: Krishn
mesh_terms: D000749:Anemia, Megaloblastic / Q000209:etiology*; D005334:Fever / Q000209:etiology*; D006801:Humans; D008297:Male; D014806:Vitamin B 12 Deficiency / Q000150:complications*