Duque, Marvin, Irvin M Modlin, Anumeha Gupta, and Muhammad Wasif Saif. “Biomarkers in Neuroendocrine Tumors”. JOP. Journal of the Pancreas 14, no. 4 (July 10, 2013): 372–376. Accessed April 22, 2026. https://serena.sharepress.it/jop/article/view/1692.