@article{{MRA}{}, author = {Varga, J., Kardos, K., Nagy, I., Kudasz, F., Szirtes, L.}, title = { Effect of Age and Life Characteristics on Variations of the Heart Rate Variability Parameters among Active Manual Workers}, journal = {Medical Research Archives}, volume = {9}, number = {10}, year = {2021}, doi = {10.18103/mra.v9i10.2564}, url = {https://esmed.org/MRA/mra/article/view/2564} }