1. Department of Pharmaceutical AnalysisChina Pharmaceutical University Nanjing P. R. China
2. Nanjing Clinical Tech. Laboratories Inc. Nanjing P. R. China
3. School of PharmacyNanjing Medical University Nanjing P. R. China
4. Department of Clinical Pharmacology, Sir Run Run HospitalNanjing Medical University Nanjing P. R. China