Background/Aims:
primary gastrointestinal melanoma
Cite this article as: Qiu S, Chen R, Yu Z, Shao S, Yuan H, Han T. The development and validation of a nomogram for predicting cancer-specific survival and a risk stratification system for patients with primary gastrointestinal melanoma. The aim of our study was to develop and validate a nomogram to predict cancer-specific survival and make a risk stratification system for primary gastrointestinal melanoma.