- Correspondence to Yu-Qing Huang, Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Academy of Medical Sciences, Guangzhou 510080, China;
- Received November 22, 2019
- Revised March 13, 2020
- Accepted March 21, 2020
- First published May 13, 2020.
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