Demir E, Öztaş İsmail, Yava A, Koyuncu A. Investigation of the Relationship Between Frailty and Sleep Quality in Postoperative Elderly Patients: A Descriptive Cross-Sectional Study. Eur Res J [Internet]. 2026 Jun. 12 [cited 2026 Jun. 25];:1-10. Available from: https://www.eurj.org.tr/article/view/1278