Turkish Cross-Cultural Adaptation of the BRIEF-MPI in Older Adults with Cancer: Convergent and Discriminative Validity Compared with the G8 and Clinical Frailty Scale - Sercan On; Haydar Cagatay Yuksel; Semih Sergen Semerci; Ecem Ozdemir; Mustafa Kagan Ozdel; Fatma Ozge Kayhan Kocak (Healthcare, 2026)