1. Public Health School, Qiqihar Medical University, Qiqihar, China
2. Pharmacy School, Qiqihar Medical University, Qiqihar, China
3. Research Institute of Medicine and Pharmacy, Qiqihar Medical University, Qiqihar, China
4. Mental Health School, Qiqihar Medical University, Qiqihar, China
5. Pathology School, Qiqihar Medical University, Qiqihar, China
6. Medical Techinology School, Qiqihar Medical University, Qiqihar, China