*Heart Disease of Traditional Chinese Medicine;

†Department of Respiratory and Critical Care Medicine;

‡Zigong Academy of Medical Sciences;

§Cardiovascular Medicine;

¶Emergency Department; and

║General Medicine, First People's Hospital of Zigong City, Zigong, China.

Correspondence: Fengya Zhu or Deya Che, First People's Hospital of Zigong City, No. 42, Shangyihao No.1 Road, Zigong 643000, China (e-mail: [email protected] or [email protected]).

The study was funded by departmental resources.

L. Li, G. Zheng contributed equally to this work.