Sociedades Internacionales WORLD FEDERATION OF SOCIETIES OF ANAESTHESIOLOGISTS. EUROPEAN SOCIETY OF ANAESTHESIOLOGY AMERICAN SOCIETY OF ANESTHESIOLOGISTS AMERICAN SOCIETY OF REGIONAL ANESTHESIA AND PAIN MEDICINE EUROPEAN SOCIETY OF REGIONAL ANAESTHESIA AND PAIN TREATMENT SOCIEDAD PANAMERICANA DE TRAUMA / PANAMERICAN TRAUMA SOCIETY TRAUMA ANESTHESIOLOGY SOCIETY PATIENT SAFETY MOVEMENT ASOCIACIÓN LATINO AMERICANA DE ANESTESIA REGIONAL SOCIEDAD MEXICANA DE ANESTESIOLOGÍA PEDIÁTRICA A.C.