Sunny, A., Hegde, A. V., Ashwath, G., Hanji, S., Devarbhavi, H. and Rozario, A. (2016) “A retrograde intussusception of Roux-en-Y gastrojejunostomy: an unusual cause of haematemesis”, International Surgery Journal, 3(3), pp. 1634–1637. doi: 10.18203/2349-2902.isj20162762.