1. Department of Medicinal Chemistry Key Laboratory of Chemical Biology (MOE) School of Pharmaceutical Sciences Cheeloo College of Medicine Shandong University Jinan Shandong 250012 China
2. Department of Biochemistry and Molecular Medicine UC Davis Comprehensive Cancer Center University of California Davis Sacramento CA 95817 USA
3. College of Food Science and Engineering Ocean University of China Qingdao Shandong 266003 China