Cite
MLA Citation
O Odemuyiwa et al.. “Influence of age on the relation between heart rate variability, left ventricular ejection fraction, frequency of ventricular extrasystoles, and sudden death after myocardial infarction..” Heart, vol. 67, no. 5, 1992, pp. 387–391. http://access.bl.uk/ark:/81055/vdc_100144235968.0x00003c