“…Simulators are a valuable training tool to increase patient safety and improve provider ability and competence in nearly every aspect of medicine. 25 Initially, simulators were not so advanced and were used for training for relatively simple skills, such as trauma resuscitation, 26 establishment of vascular access, 25 treatment of disorders of the airway, and difficulty with breathing. 27 With the progress of techniques, many advanced simulators have been developed, such as virtual reality-based simulator, first aid-focused simulator, and damage control surgery - focused simulator, etc.…”