1. Key Laboratory for Rare and Uncommon Diseases of Shandong and Key Laboratory for Tumor Immunology and Chinese Medicine Immunology of Shandong, Institute of Basic Medicine, Shandong Academy of Medical Sciences, Jinan, Shandong 250062, P.R. China
2. Laboratory Department, People's Hospital of Zhangqiu, Zhangqiu, Shandong 250200, P.R. China
3. Department of Hematology, Shengli Oilfield Central Hospital, Dongying, Shandong 257034, P.R. China