1. Department of Public Health and Welfare, Finnish institute for Health and Welfare, Helsinki, Finland
2. Individualized Drug Therapy Research Program, University of Helsinki, Helsinki, Finland
3. Department of Pulmonary Medicine, Helsinki University Hospital, Helsinki, Finland
4. Institute of Public Health and Clinical Nutrition, University of Eastern Finland, Helsinki, Finland
5. Joint Municipal Authority for North Karelia Social and Health Care (Siun Sote), Helsinki, Finland