Machuca-Portillo, María Del Carmen, Rosana Hanke-Herrero, Lydia López-Del Valle, Guillermo Machuca-Portillo, and Pedro Bullón-Fernández. 2005. “General Anesthesia: As a Challenge and Treatment Need Option in Pediatric Dentistry”. Puerto Rico Health Sciences Journal 24 (4). https://prhsj.rcm.upr.edu/index.php/prhsj/article/view/343.