1. Department of Cardiology, Tangshan Gongren Hospital
2. Hebei Medical University
3. College of Life Sciences, Hebei Normal University
4. Department of Cardiology, Kailuan General Hospital
5. School of Clinical Medicine, North China University of Science and Technology
6. Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin