1 Department of Pathology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
2 Department of Neurosurgery, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
3 Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
4 Department of Radiation Oncology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.
5 The Medical Department, Jiangsu Simcere Diagnostics Co. Ltd, Nanjing, Jiangsu Province, China.
6 Nanjing Simcere Medical Laboratory Science Co. Ltd., The State Key Lab of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co. Ltd., Nanjing, Jiangsu Province, China.