With a Heart Murmur - Semantic Scholar

The Valsalva manoeuvre: physiology and clinical examples L. Pstras,1 K. Thomaseth,2 J. Waniewski,1 I. Balzani3 and F. Bellavere4 1 Institute of Biocybernetics and Biomedical Engineering, Polish Academy of Sciences, Warsaw, Poland 2 Institute of Electronics, Computer and Telecommunication Engineering, National Research Council, Padua, Italy ................
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