Dr. Brij Sharma, Dr. Rajesh Sharma, Dr. Vishal Bodh. “Malignant Colo-Duodenal Fistula: A Rare Complication of Carcinoma Colon”. The Indian Practitioner, Vol. 75, no. 5, June 2022, pp. 32-34, https://articles.theindianpractitioner.com/index.php/tip/article/view/1368.