Gurunluoglu, Semra, Emine Samdanci, Ahmet Kadir Arslan, Nusret Akpolat, Nurhan Sahin, and Hasan Gokce. “Prognostic Significance of Poorly Differentiated Cluster Grading System in Intestinal Type Gastric Adenocarcinoma”. Annals of Medical Research 27, no. 8 (May 25, 2021): 2022–2030. Accessed October 23, 2021. https://annalsmedres.org/index.php/aomr/article/view/943.