1. Virus, Lifestyle and Genes; Danish Cancer Society Research Center; Copenhagen Denmark
2. Division of Cancer Prevention; Ocean Road Cancer Institute; Dar es Salaam United Republic of Tanzania
3. Department of Experimental Virology; Universitaetsklinikum; Tuebingen Germany
4. Department of Obstetrics and Gynecology; Odense University Hospital; Odense Denmark
5. Statistics, Bioinformatics and Registry; Danish Cancer Society Research Center; Copenhagen Denmark
6. Gynecologic Clinic Rigshospitalet; University of Copenhagen; Copenhagen Denmark