doi:10.1016/j.amjcard.2009.01.194Byeung-Keuk KimSeung Jin OhDong Woon JeonJoo Young YangJung-Sun KimYoung-Guk KoDonghoon ChoiYangsoo JangBum-Kee HongHyuk Moon KwonElsevier Inc.American Journal of Cardiology