Single-incision laparoscopic totally extraperitoneal retrieval of retroperitoneal vas deferens in vasovasostomy for obstructive azoospermia patients postchildhood bilateral herniorrhaphy - Chen-Wang Zhang; Wei-Dong Wu; Jun-Wei Xu; Jing-Peng Zhao; Er-Lei Zhi; Yu-Hua Huang; Chen-Cheng Yao; Fu-Jun Zhao; Zheng Li; Peng Li (Asian Journal of Andrology)