Real-time transrectal ultrasound-guided seminal vesiculoscopy for the treatment of patients with persistent hematospermia: A single-center, prospective, observational study oleh Xue-Sheng Wang, Ming Li, Guang-Feng Shao, Wen-Dong Sun, Xiu-Lin Zhang, Zhi-Ying Xiao, Zhen Ma, Ming-Zhen Yuan, Li-Qiang Guo