. 2021 Jul 28;18(7):514–522. doi: 10.11909/j.issn.1671-5411.2021.07.002
Copyright and License information: Journal of Geriatric Cardiology 2021
This work is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/