1. Department of Clinical Laboratory, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
2. Department of Blood Transfusion, Affiliated Hospital of Zunyi Medical College, Zunyi, Guizhou 563000, P.R. China
3. Department of Pathology, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China