1. Institute of Biomedicine; University of Turku; Turku Finland
2. Centre for Medicine Use and Safety; Faculty of Pharmacy and Pharmaceutical Sciences; Monash University; Melbourne VIC Australia
3. National Institute of Health and Welfare, Environmental Unit; Kuopio Finland
4. Social Insurance Institution; Regional Office for Eastern Finland; Kuopio Finland
5. Unit of Primary Health Care; Hospital District of Helsinki and Uusimaa; Helsinki Finland
6. Clinical Pharmacology Unit; Turku University Hospital; Turku Finland