Topçu, Birol, and Volkan Vatan. “Comparison of Endoscopic Diagnosis and Histopathological Results of Patients With a Preliminary Diagnosis of Malignancy and the Role of the Nurse in Planning”. Progress in Nutrition, vol. 22, no. 2-S, Sept. 2020, p. e2020002, https://doi.org/10.23751/pn.v22i2-S.10171.