@article{Guzik:2009,
author
=
"P.Guzik and J.Piskorski and T.Krauze and A.Wykrętowicz and H.Wysocki",
title
=
"Heart rate asymmetry by Poincare plots of RR intervals",
journal
=
"Biomedizinische Technik",
volume
=
"Vol. 51",
number
=
"4",
pages
=
"272--275",
year
=
"2006",
}