1. Clinical Epidemiology and Biostatistics, School of Medical Sciences; Örebro University; Örebro Sweden
2. Clinical Epidemiology Unit, Department of Medicine; Karolinska Institute; Solna Sweden
3. Department of Epidemiology and Public Health; University College London; London United Kingdom
4. Center for Pharmacoepidemiology, Department of Medicine; Karolinska Institute; Solna Sweden
5. Institute of Environmental Medicine; Karolinska Institute; Stockholm Sweden
6. Center for Occupational and Environmental Medicine, Stockholm County Council; Stockholm Sweden
7. Department of Clinical Neuroscience, Center for Molecular Medicine; Karolinska Institute; Stockholm Sweden