1. Department of Medicine SolnaClinical Epidemiology Unit, Karolinska InstitutetStockholm Sweden
2. Department of Oncology and PathologyKarolinska Institutet, Karolinska University HospitalStockholm Sweden
3. Department of OncologyKarolinska University HospitalStockholm Sweden
4. Department of Medical Epidemiology and BiostatisticsKarolinska InstitutetStockholm Sweden
5. Department of Clinical Sciences at Danderyd HospitalKarolinska InstitutetStockholm Sweden
6. Department of Clinical Science and EducationSödersjukhuset, Karolinska InstitutetStockholm Sweden
7. Department of SurgerySödersjukhusetStockholm Sweden