Venous thromboembolism increases the risk of atrial fibrillation: The tromsø study - Hald, Erin Mathiesen; Enga, Kristin Fjeldstad; Løchen, Maja-Lisa; Mathiesen, Ellisiv B.; Njølstad, Inger; Wilsgaard, Tom; Brækkan, Sigrid Kufaas; Hansen, John-Bjarne (Journal of the American Heart Association, 2014)