Serium vitamin B12 levels in chronic atrophic gastritis.
D045728:Corrinoids; D005756:Gastritis / Q000097:blood*; D005757:Gastritis, Atrophic; D006801:Humans; D014805:Vitamin B 12 / Q000097:blood*
D045728:Corrinoids; D014805:Vitamin B 12
GASTRITIS/blood; VITAMIN B 12/blood