1. Centre for Assessment of Medical Technology in Örebro, Örebro University Hospital, Örebro, Sweden
2. School of Medical Sciences, Örebro University, Örebro, Sweden;
3. Clinical Epidemiology and Biostatistics, School of Medical Sciences, Örebro University, Örebro, Sweden
4. Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden