1. Department of Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark;
2. Department of Gynecology, Rigshospitalet University Hospital, Copenhagen, Denmark;
3. Department of Statistics and Pharmacoepidemiology, Danish Cancer Society Research Center, Copenhagen, Denmark;
4. Childhood Cancer Research Group, Danish Cancer Society Research Center, Copenhagen, Denmark;
5. Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark