1. a Bureau of Food and Drug Analysis, Department of Health , Executive Yuan , Nankang , Taipei , Taiwan, R.O.C.
2. b Nursing Department , Hung‐Kuang University , Taichung County , Taiwan, R.O.C.
3. c Institute of Chinese Pharmaceutical Sciences , China Medical University , 91, Hsueh‐Shih Road, Taichung , 404 , Taiwan, R.O.C.
4. d Department and Institute of Pharmacology , National Yang‐Ming University , Shih‐Pai, Pettou , Taipei , Taiwan, R.O.C.