Sandoval Alzate, H. F.; Gonzalez Clavijo, A. M.; Angarita Claro, M. C.; Rosado Rodriguez, M. B.; Arenas Diaz, R. D. Chronic Diarrhea As a Manifestation of a Neuroendocrine Tumor. Rev. colomb. Gastroenterol. 2020, 35, 135-139.