“31. REPORT 4 CASE STUDY OF URETEROPELVIC JUNCTION OBSTRUCTION BY RETROPERITONEAL LAPAROSCOPIC SURGERY AT TRANSPORT HOSPITAL 4 2024 - 4 2025”. Vietnam Journal of Community Medicine, vol. 66, no. CĐ14-HNKH BV Giao thông Vận tải, Jan. 2026, https://doi.org/10.52163/yhc.v66iCD14.3137.