title: Variations in the first apical sound simulating the so-called presystolic murmur of mitral stenosis; a phonocardiographic study.
authors.forename: M M
authors.initials: MM
authors.lastname: ALIMURING
authors.forename: M B
authors.initials: MB
authors.lastname: RAPPAPORT
authors.forename: H B
authors.initials: HB
authors.lastname: SPRAGUE
mesh_terms: D006321:Heart; D006337:Heart Murmurs; D006801:Humans; D008943:Mitral Valve; D008946:Mitral Valve Stenosis