1. Unit of Virus, Lifestyle and Genes Danish Cancer Society Research Center Copenhagen Denmark
2. Department of Pathology The Johns Hopkins University School of Medicine Baltimore Maryland USA
3. Department of Gynecology & Obstetrics The Johns Hopkins University School of Medicine Baltimore Maryland USA
4. Department of Oncology The Johns Hopkins University School of Medicine Baltimore Maryland USA
5. Unit of Statistics and Pharmaco‐epidemiology Danish Cancer Society Research Center Copenhagen Denmark
6. Department of Gynecology Copenhagen University Hospital Copenhagen Denmark