BACKGROUND: Survival from cardiac arrest is sensitive to the quality of delivered CPR. In 2010, updated international resuscitation guidelines emphasized deeper
BACKGROUND: Timely reperfusion in ST-segment elevation myocardial infarction(STEMI)improves outcomes. System delay is that between first medical contact and rep
BACKGROUND: The epidemiological data on elderly patients attending Accident and Emergency Departments(AEDs) in Hong Kong is lacking. The study aimed to examine