1 Department of Cardiology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou City, Shandong, 256603, China. Electronic address: zww20040823@163.com.
2 Department of Cardiology, Binzhou Medical University Hospital, No. 661 Huanghe 2nd Road, Binzhou City, Shandong, 256603, China.