27. THE SEMI-RIGID URETEROSCOPY LITHOTRIPSY WITH HOLMIUM LASER FOR URETERAL STONES IN ELDER OVER 70 YEARS AT THONG NHAT HOSPITAL. (2024). Vietnam Journal of Community Medicine, 65(CĐ10 - Bệnh viện Thống Nhất). https://doi.org/10.52163/yhc.v65iCD10.1613