1. Laboratory of Chinese Materia Medica, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
2. Department of Human Anatomy, School of Preclinical Medicine, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China
3. Chengdu Analytical Applications Center, Shimadzu (China) Co., Ltd., Chengdu, Sichuan 610063, P.R. China
4. Laboratory of Cancer Pharmacology, Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, Sichuan 646000, P.R. China