Duration of Heart Failure With Reduced Ejection Fraction Associated With Electrocardiographic Outcomes Before and After Sacubitril/Valsartan oleh Po-Lin Lin MD, Ying-Hsiang Lee MD, Lawrence Yu-Min Liu MD, PhD, Cheng-Ting Tsai MD, Ten-Fang Yang MD, Wei-Ru Chiou MD, Mu-Yang Hsieh MD, Hung-Yu Chang MD, Chun-Che Huang PhD