Sandoval, Mark Anthony, et al. “Pattern of Weight Loss After Successful Enucleation of an Insulin-Producing Pancreatic Neuroendocrine Tumor”. Journal of the ASEAN Federation of Endocrine Societies, vol. 30, no. 2, Nov. 2015, p. 159, https://asean-endocrinejournal.org/index.php/JAFES/article/view/178.