1. Laboratory of Oncology, Center for Molecular Medicine, School of Basic Medicine, Health Science Center, Yangtze University, Jingzhou, Hubei 434023, P.R. China
2. Department of Digestive Medicine, People's Hospital of Lianjiang, Lianjiang, Guangdong 524400, P.R. China
3. State Key Laboratory of Respiratory Disease, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, Guangdong 510095, P.R. China