1. Research Center of Combined Traditional Chinese and Western Medicine, Affiliated Traditional Medicine Hospital, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
2. Department of Medicine, Zaozhuang Vocational College, Zaozhuang, Shandong 277800, P.R. China
3. Institute for Cancer Medicine, Research Center for Preclinical Medicine and College of Basic Medical Sciences, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China