Ren, Q., Zhang, H., Shi, X., Ren, L., & Cheng, J. (2026). Efficacy of Guided Imagery Training in Improving Sleep Quality in Patients With Chronic Obstructive Pulmonary Disease and Sleep Disorders. Actas Españolas De Psiquiatría, 54(5), 1401–1411. https://doi.org/10.62641/aep.2258