1. a School of Pharmacy , Xinxiang Medical University , Xinxiang , Henan , 453003 , P. R. China
2. b Department of Parasitology , Xinxiang Medical University , Xinxiang , Henan , 453003 , P. R. China
3. c The First Afiliated Hospital , Xinxiang Medical University , Xinxiang , Henan , 453100 , P. R. China