Heart rate–corrected QT interval in men increases during winter months

Circadian variation in the frequency of sudden cardiac death.

James E. Muller, Paul L. Ludmer, Stefan N. Willich et al. · Circulation · 1987 · 1.1K citations

Medicine, Cardiology, Physiology +8

Circadian variation in the incidence of sudden cardiac death in the framingham heart study population

Stefan N. Willich, Daniel Levy, Michael Rocco et al. · The American Journal of Cardiology · 1987 · 655 citations

Medicine, Cardiology, Physiology +12

Relation between QT and RR intervals is highly individual among healthy subjects: implications for heart rate correction of the QT interval

Marek Malík · Heart · 2002 · 441 citations · Full text

Life Sciences, Cardiology, Physiology +13

Diurnal, weekly and seasonal variation of sudden death. Population-based analysis of 24061 consecutive cases

H.-R. Arntz · European Heart Journal · 2000 · 360 citations

Veterinary Medicine, Cardiology, Emergency Medicine +14

Drug-Induced QT Prolongation in Women During the Menstrual Cycle

Ignacio Rodríguez · JAMA · 2001 · 310 citations

Medicine, Cardiology, Pharmacology +17