title: Absorption of cyanocobalamin, coenzyme B 12 , methylcobalamin, and hydroxocobalamin at different dose levels.
mesh_terms: D000284:Administration, Oral; D003036:Cobalt Isotopes; D003067:Coenzymes / Q000008:administration & dosage / Q000378:metabolism; D006801:Humans; D006879:Hydroxocobalamin / Q000008:administration & dosage / Q000378:metabolism; D007408:Intestinal Absorption; D014805:Vitamin B 12 / Q000008:administration & dosage / Q000378:metabolism*
chemical_list: D003036:Cobalt Isotopes; D003067:Coenzymes; D014805:Vitamin B 12; D006879:Hydroxocobalamin