1. University of Eastern Finland, Kuopio, Finland; and National Institute for Health and Welfare, Helsinki, Finland
2. University of Eastern Finland, Kuopio, Finland; and Kuopio University Hospital, Finland
3. Joint Municipal Authority for North Karelia Social and Health Services (Siun sote), Tikkamäentie, Joensuu, Finland
4. Joint Municipal Authority for North Karelia Social and Health Services (Siun sote), Tikkamäentie, Joensuu, Finland; and National Institute for Health and Welfare, Helsinki, Finland