Comparing Left Atrial Strain and the HFA-PEFF Score in Diagnosing Heart Failure with Preserved Ejection Fraction: A Cross-Sectional Study - Dang, Hai; Luong, Thang; Ho, Bang; Hoang, Tien; Mai, Anh; Nguyen, Hung (The Research in Heart Yield and Translational Medicine (RHYTHM), 2025)