Correspondence to: Qi Zhang, Department of Internal Medicine, Hebei Medical University, Shijiazhuang, Hebei 050011, ChinaDepartment of Cardiology, Tangshan Gongren Hospital Affiliated to Hebei Medical University, Tangshan, Hebei 063000, China. Email

E-mail Address: [email protected]

https://orcid.org/0000-0002-0974-7149

Department of Internal Medicine, Hebei Medical University, Shijiazhuang, China (H.Z., Q.Z.).

Department of Cardiology, Tangshan Gongren Hospital Affiliated to Hebei Medical University, China (H.Z., X.L., G.Q., C.Y., Q.Z.).