Mejía Londoño, Juliana, Francisco Javier Montoya Ochoa, Alejandra Gutiérrez Rua, Cristian Macías Rueda, Jaime López Granada, and Jorge Hernando Donado Gómez. 2007. “Perioperatory Oxygen Supplement and Surgical Wound Infection: A Meta-Nalysis of Randomized Controlled Trials”. Medicina UPB 26 (2): 127-36. https://revistas.upb.edu.co/index.php/medicina/article/view/2281.