1. The Second Affiliated Hospital, Qiqihar Medical University, Qiqihar, P.R. China
2. College of Life Science, Cangzhou Normal University, Hebei, P.R. China
3. Pharmacy School, Qiqihar Medical University, Qiqihar, P.R. China
4. Medical Technology Department, Qiqihar Medical University, Qiqihar, P.R. China