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