TY - JOUR TI - Efficacy of Portable Bladder Ultrasound in Reducing CBCT Frequency During Pelvic Radiotherapy AU - YÜCEL, M.C.B.. AU - YAKAR, M. AU - ÖZEN, A. AU - ETİZ, D. JO - Turk J Oncol PY - 2026 VL - 41 SP - 186 EP - 192 DO - 10.14744/hf.2026.4770 ER -