1. Copenhagen Trial Unit, Centre for Clinical Intervention Research; The Capital Region of Denmark, Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
2. Liverpool Reviews and Implementation Group; University of Liverpool; Liverpool UK
3. Cochrane Hepato-Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research; The Capital Region, Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
4. Cochrane Hepato-Biliary Group, Copenhagen Trial Unit, Centre for Clinical Intervention Research; The Capital Region of Denmark, Rigshospitalet, Copenhagen University Hospital; Copenhagen Denmark
5. Department of Cardiology; Holbaek Hospital; Holbaek Denmark