title: Effect of normative aging on midwall left ventricular systolic performance.
authors.affiliation: Division of Cardiology, Johns Hopkins University School of Medicine-Johns Hopkins Bayview Medical Center, Baltimore, Maryland, USA.
authors.forename: S
authors.initials: S
authors.lastname: Ahmed
authors.forename: E P
authors.initials: EP
authors.lastname: Shapiro
authors.forename: F E
authors.initials: FE
authors.lastname: O'Connor
authors.forename: J L
authors.initials: JL
authors.lastname: Fleg
mesh_terms: D000375:Aging / Q000502:physiology*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D012016:Reference Values; D013599:Systole; D016277:Ventricular Function, Left