title: [P loop of frank system vectorcardiography in mitral valve stenosis].
mesh_terms: D000293:Adolescent; D000328:Adult; D002306:Cardiac Volume; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008946:Mitral Valve Stenosis / Q000503:physiopathology*; D014672:Vectorcardiography