1. Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Copenhagen, Denmark;
2. Department of ORL, H&N Surgery and Audiology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark;
3. Statistics, Bioinformatics and Registry, Danish Cancer Society Research Center, Copenhagen, Denmark;
4. Department of Gynecology, Rigshospitalet, Copenhagen University Hospital, Copenhagen, Denmark