@article{Guzik:2018,
author
=
"P.Guzik and C.Piekos and O.Pierog and N.Fenech and T.Krauze and J.Piskorski and A.Wykrętowicz",
title
=
"Classic electrocardiogram-based and mobile technology derived approaches to heart rate variability are not equivalent",
journal
=
"International Journal of Cardiology",
volume
=
"Vol. 258",
pages
=
"154--156",
year
=
"2018",
}