1 Department of General Surgery at Hospital Iess Quito Sur, Quito, Ecuador; Universidad San Francisco de Quito (USFQ), Quito-Ecuador. Electronic address: gabomolina32@gmail.com.
2 Department of General Surgery at Hospital Iess Quito Sur, Quito, Ecuador; Universidad Internacional del Ecuador, (UIDE), Quito, Ecuador.
3 Hospital Metropolitano, Department of Surgery Division of Cardiothoracic Surgery, Quito, Ecuador.
4 Department of General Surgery at Hospital General San Francisco, IESS, Quito, Ecuador.
5 Department of General Surgery at Hospital Iess Quito Sur, Quito, Ecuador.