Zeraati, Hojjat, and Zohreh Amiri. “Estimating Postoperative Survival of Gastric Cancer Patients and Factors Affecting It in Iran: Based on a TNM-7 Staging System”. Acta Medica Iranica 54, no. 2 (March 12, 2016): 114-118. Accessed March 4, 2021. https://acta.tums.ac.ir/index.php/acta/article/view/5115.