Rapid estimation of the serum vitamin B12 level by a microbiological method.
D000740:Anemia / Q000097:blood*; D001769:Blood; D045728:Corrinoids; D006397:Hematinics; D006801:Humans; D012044:Regression Analysis; D014805:Vitamin B 12 / Q000032:analysis*
D045728:Corrinoids; D006397:Hematinics; D014805:Vitamin B 12
ANEMIA/blood in; BLOOD; VITAMIN B12/determination