OBSTRUCTIVE SLEEP APNEA AND HEART FAILURE: ECHOCARDIOGRAPHIC PHENOTYPE, HFPEF BURDEN, AND CLINICAL IMPLICATIONS IN A HOSPITAL-BASED OBSERVATIONAL COHORT. A-JMRHS [Internet]. 2026 Mar. 7 [cited 2026 Apr. 21];4(01):517-25. Available from: https://ajmrhs.com/journal/article/view/126