1Department of Cardiology, Central hospital affiliated to Shandong First Medical University, Jinan, Shandong 250012, China
2Department of Cardiology, The First Affiliated Hospital of University of Science and Technology of China (Anhui Province Hospital), Hefei, Anhui, 230001, China
3Department of Cardiology, the Second Hospital of Shandong University, Jinan, Shandong 250033, China
*Correspondence to: Ping Liu, Department of Cardiology, The Second Hospital of Shandong University, No. 247, Beiyuan Road, Jinan, Shandong 250033, China; Email: [email protected]; [email protected] Su, Department of Cardiology, central hospital affiliated to Shandong First Medical University, Jinan, Shandong 250012, China; Email: [email protected].
The authors declare that there is no conflict of interest regarding the publication of this article. All authors read and approved the final manuscript.
