Miyamoto, R. ., Kikuchi, K. ., Uchida, A. ., Ozawa, M. ., Kemmochi, A. ., Sano, N. ., … Yamamoto, M. . Collision tumor consisting of a colorectal adenocarcinoma and dissemination of a gastric adenocarcinoma. SAGE Open Medical Case Reports, 6, 2050313X17751839. https://doi.org/10.1177/2050313X17751839 (Original work published 2018)