Anesthesiologists Dr. Nadia S?nchez Oliveros (left) and Dr. Luis Vieras Delnardo (center right), along with surgeons Dr. Dennis Lowell Quijada Vera (center left) and Dr. Ligia S?nchez (right), consult an ultrasound before performing an operation on a patient while working at Dr. Augusto Essmann Burgos Hospital in Puerto Natales, Chile. All four doctors are from Venezuela.