1. Centralab, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
2. Clinical Laboratory, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
3. Department of Pathology, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China
4. Department of Critical Care Medicine, First Affiliated Hospital of Dalian Medical University, Dalian, Liaoning 116011, P.R. China