[GASTRIC CANCER AND VITAMIN B 12 DEFICIENCY].
D001774:Blood Chemical Analysis; D006801:Humans; D013274:Stomach Neoplasms; D014806:Vitamin B 12 Deficiency
BLOOD CHEMICAL ANALYSIS; STOMACH NEOPLASMS; VITAMIN B 12 DEFICIENCY
RAK ZHELUDKA I GIPOVITAMINOZ B 12.