%0 Journal Article
%T A new approach to the measurement of heart rate in patients with chronic heart failure-Heart rate performance index:  an observational study
%A Akyüz, A.
%A Alpsoy, Ş.
%A Çayan  Akkoyun, D.
%A Güler, N.
%J The Anatolian Journal of Cardiology
%D 2013
%V 13
%P 215-220
%R 10.5152/akd.2013.066