1 Department of Interventional Radiology, First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, 450052, China.
2 Department of Urology, Henan Institute of Urology and Zhengzhou Key Laboratory for Molecular Biology of Urological Tumor Research, First Affiliated Hospital of Zhengzhou University, Zhengzhou City, Henan Province, 450052, China. zgwhgch@hotmail.com.