Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China;
Department of Nephrology, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China;
Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China;
Department of Neurosurgery, First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China;