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. SO - Turk J Oncol 2026;41:186-192. DO - 10.14744/hf.2026.4770