letter . 2020 Jul 2;72(4):309–311. doi: 10.1016/j.ihj.2020.06.017
© 2020 Cardiological Society of India. Published by Elsevier B.V.
This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).