Acute Coronary Syndrome Humans 12 acute coronary syndrome 10 human 10 letter 10 priority journal 10 Follow-Up Studies 6 Risk Factors 6 follow up 6 Coronary Artery Disease 4 Myocardial Infarction 4 Piperazines 4 Platelet Aggregation Inhibitors 4 ST segment elevation myocardial infarction 4 Severity of Illness Index 4 Thiophenes 4 Ticlopidine 4 Troponin T 4 clopidogrel 4 disease severity 4 heart infarction 4 hospital admission 4 prasugrel 4 transluminal coronary angioplasty 4 troponin T 4 Algorithms 2 Angioplasty, Balloon, Coronary 2 Biological Markers 2 Chest Pain 2 Coronary Vessels 2