1. Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang, PR China
2. Department of Pharmaceutical Analysis, Shenyang Pharmaceutical University, Shenyang, PR China
3. Department of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, PR China
4. Chemistry Division, Liaoning Institute for Food and Drug Control, Shenyang, PR China