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2. Diseases of the heart;Mackenzie, J.,1925
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4. Clinical auscultation of the heart;Levine, S.A.; Harvey, W.P.,1949
5. The problem of non-ejection systolic clicks and associated mitral systolic murmurs: emphasis on the billowing mitral leaflet syndrome;Barlow, J.B.; Pocock, W.A.;Am HeartJ,1975