1. School of Pharmacy, Henan University of Traditional Chinese Medicine
,
Zhengzhou
,
China
;
2. Research Center for Classic Chinese Medines & Health Herbal Products , Zhengzhou , China ;
3. Guangzhou Hehuang Pharmaceutical Co., Ltd
,
Guangzhou
,
China
;
4. Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences
,
Beijing
,
China