1. Department of Public Health and Clinical Medicine (K.Š., T.O., C.M.), Örebro University Hospital, Örebro, Sweden;
2. Umeå University, Umeå, Sweden; Departments of Surgery (I.N.) Örebro University Hospital, Örebro, Sweden;
3. Department of Medicine (J.-E.A.), Sahlgrenska Academy, Gothenburg, Sweden;
4. Department of Radiology and Vascular Surgery (L.L.), Faculty of Health Sciences, Rigshospitalet, Copenhagen, Denmark
5. Medicine (E.R.), Örebro University Hospital, Örebro, Sweden;