<qa>  What is the long-term DAPT group in the present clinical study?A prospective multicenter registry in real-world Japanese patients undergoing DAPT for three months after stenting. To assess the long-term safety of Endeavor Zotarolimus-eluting stent through noninferiority in the primary endpoint between two different continuous regimen three and twelve months groups of DAPT after stenting with Endeavor Zotarolimus-eluting stent in real-world Japanese patients and to examine the optimal duration of DAPT after stenting with Endeavor Zotarolimus-eluting stent. The long-term DAPT group in the present clinical study to be appropriated from the post-marketing surveillance of Endeavor should consist of consecutive patients undergoing DAPT for twelve months after stenting, while the short-term DAPT group to be newly registered in the present clinical study should consist of patients who are instructed to undergo DAPT for three months after stenting. 