%0 Journal Article
%T Could decreased vitamin D levels be related with impaired cardiac autonomic functions in patients with chronic heart failure:  an observational study
%A Çetin, M.
%A Kozdağ, G.
%A Ural, D.
%A Kahraman, G.
%A Yılmaz, İ.
%A Akay, Y.
%A Onuk, R.
%A Dursun, N.
%J The Anatolian Journal of Cardiology
%D 2014
%V 14
%P 434-441
%R 10.5152/akd.2014.4869