Reeta Devi and  Hitender Kumar Tyagi and  Dinesh Kumar,  Heart Rate Variability Analysis for Early Stage Prediction of Sudden Cardiac Death.   journal   = {International Journal of Electrical and Computer Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2016, vol. 111(3). 432 - 435
    [viewed 27 April 2024]. Available from: https://publications.waset.org/pdf/10004326.