1. Department of Medical Neurosurgery, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
2. Department of Medical Imaging, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan 650032, P.R. China
3. School of Pharmaceutical Sciences and Yunnan Key Laboratory of Pharmacology for Natural Products, Kunming Medical University, Kunming, Yunnan 650500, P.R. China
4. Biomedical Engineering Center, Kunming Medical University, Kunming, Yunnan 650500, P.R. China