1 “... of external chest compressions and mouth-to-mouth ventilation. Despite the development of CPR and other...”

2 “... of external chest compressions and mouth-to-mouth ventilation. Despite the development of CPR and other...”

3 “... failure symptoms including chest pain, shortness of breath, and fatigue as the heart works harder to pump...”

4 “... failure symptoms including chest pain, shortness of breath, and fatigue as the heart works harder to pump...”