aDepartment of Cardiology, CHA Bundang Medical Center, CHA University, Seongnam
bDepartment of Cardiology
cDivision of Biostatistics, Center for Medical Research and Information, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
*Se Hun Kang and Jung-Min Ahn contributed equally to the writing of this article.
Correspondence to Duk-Woo Park, MD, PhD, Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, 88, Olympic-ro 43-gil, Songpa-gu, Seoul 05505, Korea Tel: +82 230 103 995; fax: +82 24 756 898; e-mail: [email protected]
Received May 16, 2018
Received in revised form September 10, 2018
Accepted September 28, 2018
