sentences:  The antiplatelet regimens that were advised for the drug eluting stents were based on the early trials of these stents.Based on these trials, the antiplatelet regimen was a combination of aspirin and clopidogrel for 3 months when Cypher stents were used, and 9 months when Taxus stents were used, followed by aspirin indefinitely.Soon, case reports started being published regarding late stent thrombosis.