1. Division of Infection and Pathway Medicine; The University of Edinburgh, Little France Crescent, Scotland
2. Department of Otolaryngology, The Laurieston Building; NHS Lothian, Edinburgh
3. Western General Hospital; The Edinburgh Cancer Centre; NHS Lothian, Edinburgh
4. Department of Pathology; Royal Infirmary of Edinburgh; NHS Lothian, Edinburgh
5. Department of Laboratory Medicine; Royal Infirmary of Edinburgh; NHS, Edinburgh
6. Scottish HPV Reference Laboratory; Royal Infirmary of Edinburgh; NHS Lothian, Edinburgh