1. Department of Medicine – Solna, Centre for Pharmacoepidemiology, Karolinska Institutet, T2 Karolinska University Hospital, Solna, Sweden;
2. Department of Medical Science, Uppsala University Hospital, Uppsala, Sweden;
3. Regional Cancer Centre, Uppsala-Örebro, Uppsala, Sweden;
4. Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Sweden;
5. Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Solna, Sweden;
6. Department of Oncology, Karolinska University Hospital, Solna, Sweden