[1] University of Eastern Finland,Department of Public Health and Clinical Nutrition
[2] Kuopio University Hospital/Primary Health Care,Department of Anaesthesiology, Intensive Care, Emergency Care and Pain Medicine
[3] University of Turku and Turku University Hospital,Department of Anesthesiology and Intensive Care Medicine, Töölö Hospital
[4] Helsinki University Central Hospital,Centre for Health and Social Economics
[5] Finnish Medical Association,undefined
[6] Insitute for Health and Welfare,undefined