1. Department of Respiratory and Critical Care Medicine, Wuhu Hospital of Traditional Chinese Medicine, Wuhu, Anhui 241000, P.R. China
2. Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China
3. Department of Medical Parasitology, School of Basic Medicine, Wannan Medical College, Wuhu, Anhui 241002, P.R. China