1. Clinical Laboratory, Jin'an District Hospital, Fuzhou, Fujian 350011, P.R. China
2. Department of Blood Transfusion, Sanming Second Hospital, Yong'an, Fujian 366000, P.R. China
3. Department of Pediatric Surgery, Sanming First Hospital Affiliated to Fujian Medical University, Sanming, Fujian 365000, P.R. China
4. Department of Emergency, Jin'an District Hospital, Fuzhou, Fujian 350011, P.R. China