. 2016 Dec 23;47(1):123–131. doi: 10.4070/kcj.2016.0203
Copyright © 2017 The Korean Society of Cardiology
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.