Fang, Q. (2026) “Risk Factors for Postoperative Sleep Disturbance in Elderly Patients Undergoing Hip Arthroplasty Surgery: The Role of Preoperative Depression and Anxiety”, Actas Españolas de Psiquiatría, 54(4), pp. 1120–1131. doi: 10.62641/aep.v54i4.2244.