T. Vân Anh, N. Thị Hoàng Phước, and N. Thị Oanh, “INCIDENCE OF PREOPERATIVE ANEMIA IN PATIENT WITH GASTROINTESTINAL CANCER”, JHA, vol. 1, no. 1, pp. 61–66, Jun. 2025, doi: 10.63947/bvtn.v1i1.9.