Cite
HARVARD Citation
Portaluppi, F. et al. (1981). Mechanism of influence of PR interval on loudness of first heart sound. Heart. 45 (2), pp. 230-231. [Online].
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Portaluppi, F. et al. (1981). Mechanism of influence of PR interval on loudness of first heart sound. Heart. 45 (2), pp. 230-231. [Online].