Lunca, S., M. Pertea, G. Bouras, L. Dumitru, and S. G. Hatjissalatas. “Morbid Obesity: A Surgical Perspective”. Journal of Gastrointestinal and Liver Diseases, vol. 14, no. 2, June 2005, pp. 151-8, https://www.jgld.ro/jgld/index.php/jgld/article/view/2005.2.8.