2Morshedi-Meibodi Ali, Larson MG, Levy D, et al. Heart rate recovery after treadmill exercise testing and risk of cardiovascular disease events .(The Framingham heart study). Am J Cardiol 2002;90:848-852.
3Watanabe J, Thamilarasan M, Blackstone EH, et al. Heart rate recovery immediately after treadmill exercise and left ventricular systolic dysfunction as predictors of mortality: the case of stress echocardiography. Circulation 2001;104:1911-1916.
4Desai MY, Pena-Almaguer E, Mannting F. Abnormal heart rate recovery after exercise as a reflection of an abnormal chronotropic response. Am J Cardiol 2001;87:1164-1169.
5Jhomas JD, Eugene IdB, Fredic JP, et al. Useful of impaired chrotonotropic response to exercises a predictor of mortality,independent of the severity of coronary artery disease.Am J Cardiol.2000,86:602-609.