1. Department of Oncology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
2. Department of Clinical Laboratory, The Fourth Hospital of Jinan, Jinan, Shandong 250031, P.R. China
3. Department of Oncology, The Central Hospital of Jinan, Jinan, Shandong 250013, P.R. China
4. Department of Hematology and Oncology, The Fourth Hospital of Jinan, Jinan, Shandong 250031, P.R. China