The second-and third-generation DESs were defined as everolimus-eluting stents with a durable polymer (Xience [Abbott Vascular, Santa Clara, California] and Promus [Boston Scientific, Natick, Massachusetts]), zotarolimus-eluting stents with a durable polymer (Resolute [Medtronic, Minneapolis, Minnesota]), everolimus-eluting stents with a bioabsorbable polymer (Synergy [Boston Scientific, Natick, Massachusetts]), biolimus-eluting stents with a biodegradable polymer (Nobori [Terumo, Tokyo, Japan]), Ultimaster sirolimus-eluting stents with a biodegradable polymer (Ultimaster [Terumo, Tokyo, Japan] and Orsiro [Biotronik, Bülach, Switzerland]), Biomatrix biolimus A9 (BA9)-eluting stents with a biodegradable polymer, and BioFreedom BA9-coated stents (Biosensors, Newport Beach, California) [3 (link)].
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