Predicting maximal HR in heart failure patients on ß-blockade therapy.
Keteyian SJ, Kitzman D, Zannad F, Landzberg J, Arnold JM, Brubaker P, Brawner CA, Bensimhon D, Hellkamp AS, Ewald G. Predicting maximal HR in heart failure patients on ß-blockade therapy. Med Sci Sports Exerc. 2012 Mar; 44(3):371-6.