M. R. Khan, N. B. Farooqi, and N. Shahzad, “IS PROXIMAL GASTRIC CANCER A DIFFERENT ENTITY FROM DISTAL GASTRIC CANCER? ANATOMICAL SITE DISTRIBUTION OF SIGNET RING CELL CARCINOMA AND ITS ASSOCIATION WITH HELICOBACTER PYLORI INFECTION”, J Ayub Med Coll Abbottabad, vol. 32, no. 2, pp. 194–197, Mar. 2020.