Amaral, M. J., H. Alexandrino, D. Meireles, R. C. Oliveira, M. Serodio, and J. G. Tralhao. “You Are Not Yourself When You Are Hungry: A Rare Case of Malignant Insulinoma”. International Surgery Journal, vol. 7, no. 7, June 2020, pp. 2378-83, doi:10.18203/2349-2902.isj20202852.