1. Department of Neurosurgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shannxi, China
2. Department of Neurosurgery, The Hancheng People’s Hospital, Weinan, Shannxi, China
3. Department of Endocrinology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shannxi, China
4. Department of Neurosurgery, Bao Ji Affiliated Hospital of Xi’an Medical University, Baoji, Shannxi, China
5. Department of Neurosurgery, Mianxian Hospital, Mianxian, Shannxi, China
6. Department of Neurosurgery, Traditional Chinese Medicine Hospital of Xixiang, Hanzhong, Shannxi, China