AspirinTiclopidinePlatelet Aggregation InhibitorsDrug Therapy, CombinationDipyridamoleHemorrhageDouble-Blind MethodPurinergic P2Y Receptor AntagonistsTreatment OutcomePlatelet Function TestsAnticoagulantsNostoc muscorumMyocardial InfarctionPlatelet AggregationAnti-Inflammatory Agents, Non-SteroidalPlacebo EffectThiophenesAcute Coronary SyndromeBlood PlateletsPlatelet ActivationThrombosisThromboxane B2Angioplasty, Balloon, CoronaryAryl Hydrocarbon HydroxylasesCyclooxygenase InhibitorsDrug ResistanceDose-Response Relationship, DrugDrug InteractionsCross-Over StudiesPostoperative HemorrhageTime FactorsFibrinolytic AgentsDrug Administration ScheduleSalicylatesBleeding TimeProton Pump InhibitorsStentsProspective StudiesCoronary Thrombosis