Tenggara, R. and Sugondo, L. A. (2017) “Multiple Primary Malignancy of Esophageal and Gastric Synchronous and Colon Metachronous”, The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy, 18(1), pp. 52–54. doi: 10.24871/181201752-54.