Efficacy analysis of F4.8 visual nephroscope under ultrasound-guided spermatic cord block in the treatment of benign epididymal tumors

Efficacy analysis of F4.8 visual nephroscope under ultrasound-guided spermatic cord block in the treatment of benign epididymal tumors Tianjin Medical Journal . 2021, (12): 1303 -1307 . DOI: 10.11958/20211508