Groover, Sarah, Rashmi Kaul, Sarah E Johnston, Yan D Zhao, Asha Karippot, and Pragatheeshwar Thirunavukarasu. 2019. “Characteristics of Carcinoembryonic Antigen-Producing Colorectal Cancers: A Population Based Study”. Archive of Oncology 25 (1): 1-8. https://doi.org/10.2298/AOO181029007G.