1. Department of Clinical Laboratory, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315040, P.R. China
2. Department of Emergency, Ningbo No. 2 Hospital, Ningbo, Zhejiang 315040, P.R. China
3. Department of Orthopedics, Ningbo No. 6 Hospital, Ningbo, Zhejiang 315040, P.R. China