“44. ASSESSMENT OF MEDICATION ADHERENCE USING THE MORISKY-8 SCALE (MMAS-8) IN OLDER PATIENTS WITH HEART FAILURE WITH REDUCED EJECTION FRACTION” (2026) Vietnam Journal of Community Medicine, 66(CĐ14-HNKH BV Giao thông Vận tải). doi:10.52163/yhc.v66iCD14.3151.