[1] Zhengzhou Univ, Dept Intervent Radiol, Affiliated Hosp 1, Zhengzhou 450052, Henan, Peoples R China
[2] Zhengzhou Univ, Dept Resp & Crit Care Med, Affiliated Hosp 1, Zhengzhou 450052, Henan, Peoples R China
[3] Zhengzhou Univ, Ctr Reprod Med, Affiliated Hosp 1, Zhengzhou 450052, Henan, Peoples R China
[4] Zhengzhou Univ, Dept Pediat Urol, Affiliated Hosp 1, Zhengzhou 450052, Henan, Peoples R China
[5] Southern Med Univ, Zhujiang Hosp, Dept Oncol, Guangzhou 510282, Guangdong, Peoples R China
[6] Cent South Univ, Xiangya Hosp, Dept Neurosurg, Changsha 410008, Hunan, Peoples R China
[7] Zhengzhou Univ, Dept Colorectal Surg, Affiliated Hosp 1, Zhengzhou 450052, Henan, Peoples R China