title: Vitamin B12 deficiency.
authors.affiliation: Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK alesiahunt@nhs.net.
authors.forename: Alesia
authors.initials: A
authors.lastname: Hunt
authors.affiliation: Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
authors.forename: Dominic
authors.initials: D
authors.lastname: Harrington
authors.affiliation: Haematology, Guy's and St Thomas' NHS Foundation Trust, London, UK.
authors.forename: Susan
authors.initials: S
authors.lastname: Robinson
mesh_terms: D006710:Homocysteine / Q000097:blood; D006801:Humans; D006879:Hydroxocobalamin / Q000008:administration & dosage; D008764:Methylmalonic Acid / Q000378:metabolism; D014155:Transcobalamins / Q000378:metabolism; D014805:Vitamin B 12 / Q000008:administration & dosage*; D014806:Vitamin B 12 Deficiency / Q000097:blood / Q000175:diagnosis* / Q000209:etiology* / Q000628:therapy; D014803:Vitamin B Complex / Q000008:administration & dosage*
chemical_list: D014155:Transcobalamins; D006710:Homocysteine; D014803:Vitamin B Complex; D008764:Methylmalonic Acid; D014805:Vitamin B 12; D006879:Hydroxocobalamin