1. Institute of Clinical Pharmacology/GCP Center; West China Hospital of Sichuan University; Chengdu 610041 China
2. The First Affiliated Hospital of Chongqing Medical University; Chongqing 400010 China
3. Tianjin Institute of Pharmaceutical Research; Tianjin 300193 China
4. Chongqing Fagen Biomedical Inc.; Chongqing 400010 China