1. International Cooperation Laboratory on Signal Transduction, Eastern Hepatobiliary Surgery Institute; Second Military Medical University; Shanghai 200438 P. R. China
2. National Center for Liver Cancer; Shanghai 201805 P. R. China
3. Central Laboratory; Shanghai Tenth People's Hospital, Tongji University; Shanghai 200070 P. R. China
4. Department of Laboratory Medicine; Shanghai Tenth People's Hospital, Tongji University; Shanghai 200070 P. R. China