Sherif P, Ajmal, Dhanya Kesavan Sudha, Anju Chacko, Biju IK, & Pradeep Kumar P. " Difficult Diagnosis of a Carcinoma Esophagus." BMH Medical Journal - ISSN 2348–392X [Online], 9.3 (2022): 69-72. Web. 17 May. 2024