[VITAMIN B12 DEFICIENCY FOLLOWING PARTIAL GASTRIC RESECTION].
D005743:Gastrectomy; D006801:Humans; D011183:Postoperative Complications; D014806:Vitamin B 12 Deficiency
GASTRECTOMY; POSTOPERATIVE COMPLICATIONS; VITAMIN B 12 DEFICIENCY
GIPOVITAMINOZ B 12 POSLE CHASTICHNO I REZEKTSII ZHELUDKA