Chhetri, Praghosh, Lava Shrestha, and Narayan B Mahotra. 2022. “Validity of Elite-HRV Smartphone Application for Measuring Heart Rate Variability Compared to Polar V800 Heart Rate Monitor”. Journal of Nepal Health Research Council 19 (04), 809-13. https://doi.org/10.33314/jnhrc.v19i04.3949.