1. Department of Urinary Surgery, The Second Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
2. Department of Clinical Laboratory, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
3. Blood Center of Shandong Province, The Second Hospital of Shandong University, Jinan, Shandong 250000, P.R. China
4. Department of Blood Transfusion, The Second Hospital of Shandong University, Jinan, Shandong 250000, P.R. China