1. Section for Social and Clinical Pharmacy; Department of Pharmacy; Faculty of Health and Medical Science; University of Copenhagen; Copenhagen Denmark
2. Biostatistics; Department of Public Health; University of Aarhus; Aarhus Denmark
3. Section for Social and Clinical Pharmacy; University of Copenhagen; Copenhagen Denmark
4. Oxford Institute of Population Ageing; University of Oxford; Oxford UK
5. General Practice Research Unit; Department of Public Health and General Practice; Norwegian University of Science and Technology; Trondheim Norway