Divison of Cardiology;
Department of Internal Medicine;
Yeungnam University Hospital;
170;
Hyeonchung-ro;
Nam-gu;
Daegu 705-717;
South Korea;
Division of Cardiology;
Department of Internal Medicine;
Chonnam National University Hospital;
42;
Jebong-ro;
Dong-gu;
Kwangju 501-757;
South Korea;
Divison of Cardiology;
Department of Internal Medicine;
Chungbuk National University Hospital;
410;
Sungbong-ro;
Heungdeok-gu;
Cheongju;
Chungcheongbuk-do 361-711;
South Korea;
Division of Cardiology;
Department of Internal Medicine;
Kyunghee University Hospital;
892;
Dongnam-ro;
Gandong-gu;
Seoul 134-727;
South Korea;
Division of Cardiology;
Department of Internal Medicine;
Hanrim University Hospital;
94-195;
Yeongdeungpo-dong;
Yeongdeungpo-gu;
Seoul 150-030;
South Korea;