Chattopadhyay, S., Alamgir, M. F., Nikitin, N. P., Rigby, A. S., Clark, A. L., & Cleland, J. G. F. (2010). Lack of diastolic reserve in patients with heart failure and normal ejection fraction. Circulation. Heart failure, 3(1), 35-43. doi:10.1161/CIRCHEARTFAILURE.108.824888