Department of Heart Disease;
Haukeland University Hospital;
Bergen;
Norway;
Department of Clinical Science;
University of Bergen;
Bergen;
Norway;
Kavli Research Centre for Geriatrics and Dementia;
Haraldsplass Deaconess Hospital;
Bergen;
Norway;
University of Pittsburgh Medical Center;
VA Pittsburgh Healthcare System;
Pittsburgh;
USA;
Research Unit for General Practice Uni Research Health;
Bergen;
Norway;
Department of Thoracic Medicine;
Haukeland University Hospital;
Bergen;
Norway;