Lo AX, Donnelly JP, McGwin G, Bittner V, Ahmed A, Brown CJ. Impact of gait speed and instrumental activities of daily living on all-cause mortality in adults ?65 years with heart failure. Am J Cardiol. 2015  ;115(6):797-801.

Wang HE, Donnelly JP, Yende S, Levitan EB, Shapiro NI, Dai Y, Zhao H, Heiss G, Odden M, Newman A, et al. Validation of the REGARDS Severe Sepsis Risk Score. J Clin Med. 2018  ;7(12).