Acetylsalicylic acid Not Yet Recruiting Phase 4 Trials for Myocardial Ischemia / Coronary Artery Disease / Clopidogrel, Poor Metabolism of / Aspirin Sensitivity / Platelet Thrombus / Cardiovascular Heart Disease / Platelets Dysfunction / Coronary Heart Disease (CHD) / Heart Diseases / Artery Occlusion Basic Science