1. Department of Medical Oncology, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
2. Zhejiang Institute for Food and Drug Control, Hangzhou, Zhejiang 310052, P.R. China
3. Department of Medical Oncology, The First Affiliated Hospital of Zhejiang Traditional Chinese Medical University, Hangzhou, Zhejiang 310006, P.R. China
4. Clinical Laboratory, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China
5. Cancer Research Institute, Zhejiang Cancer Hospital, Hangzhou, Zhejiang 310022, P.R. China