P Klootwijk

Heart rate variability from short electrocardiographic recordings predicts mortality from all causes in middle-aged and elderly men. The Zutphen Study.

D Kromhout, J M Dekker, J. Dekker, 1997, American journal of epidemiology.

Association Between QT Interval and Coronary Heart Disease in Middle‐aged and Elderly Men: The Zutphen Study

D Kromhout, J M Dekker, J. Dekker, 1994, Circulation.