Japan Emergency Medical System Co. Ltd.;
Miyazaki;
Japan;
Graduate School of Emergency Medical System;
Kokushikan University;
Tama;
Japan;
Research Institute of Disaster Management and EMS;
Kokushikan University;
Tama;
Japan;
Department of Sport and Medical Science;
Faculty of Physical Education;
Kokushikan University;
Tama;
Japan;
Sudden; Cardiac; Arrest; Marathon; Race; PAD; Bystander; CPR;