Sherif P, Ajmal, 		Sudha, Dhanya, 		Chacko, Anju, 		IK, Biju, AND 		Kumar P, Pradeep.
" Difficult Diagnosis of a Carcinoma Esophagus" <em>BMH Medical Journal    -   ISSN 2348–392X</em> [Online], Volume 9 Number 3 (3 April 2022)