1. Liaocheng People's Hospital, Liaocheng 252000, Shandong Province, P. R. China
2. School of Basic Medical Sciences, Shandong University, Jinan 250000, Shandong Province, P. R. China
3. The Affiliated Tai'an City Central Hospital of Qingdao University, Taian 271000, Shandong Province, P. R. China
4. Qi Lu Hospital Affiliated to Shandong University, Jinan 250000, Shandong Province, P. R. China
5. Qilu Hospital of Shandong University oncology department Jinan China
6. Department of Pathology, Harbin Medical University, Harbin, Heilongjiang Province, P. R. China
7. Taian City Central Hospital Laboratory Department Taian China