Shaotian Qiu, Shaotian Qiu, Rui Chen, Zhenjun Yu, Shuai Shao, Haixia Yuan, et al. The Development and Validation of a Nomogram for Predicting Cancer-Specific Survival and a Risk Stratification System for Patients with Primary Gastrointestinal Melanoma. Turkish Journal of Gastroenterology [Internet]. 2023 Aug. 1 [cited 2025 Jul. 4];34(8):850-8. Available from: https://tjg.avesjournals.com/index.php/tjg/article/view/4553