title: The disappearance of cobalamin absorption testing: a critical diagnostic loss.
authors.affiliation: Department of Medicine, New York Methodist Hospital, Brooklyn, NY 11215, USA. rac9001@nyp.org
authors.forename: Ralph
authors.initials: R
authors.lastname: Carmel
mesh_terms: D006801:Humans; D007408:Intestinal Absorption; D007700:Kinetics; D015203:Reproducibility of Results; D014805:Vitamin B 12 / Q000378:metabolism*; D014806:Vitamin B 12 Deficiency / Q000175:diagnosis*
chemical_list: D014805:Vitamin B 12