1 Department of Dermatology and Venereology, Rostock University Medical Center, Rostock, Germany.
2 Department of Dermatology, Venereology and Allergology, Division of Evidence-based Medicine in Dermatology (dEBM), Charité - Universitätsmedizin Berlin, corporate member of Free University Berlin, Humboldt University Berlin, and Berlin Institute of Health, Berlin, Germany.
3 Department of Dermatology, Essen University Hospital, Essen, Germany, German Cancer Consortium (DKTK), Essen/Düsseldorf, Germany.
4 Department of Dermatology, Venereology and Allergology, Ruhr University Bochum, Germany, WIR "Walk in Ruhr" Center for Sexual Health at St. Elisabeth Hospital, Bochum, Germany.
5 Department of Dermatology and Venereology, Center for HIV, AIDS and Venereal Diseases, University Hospital Essen, Essen, Germany.
6 Department of Gynecology and Obstetrics, Heinrich-Heine-University Hospital, Düsseldorf, Germany.
7 Department of Pediatrics and Adolescent Medicine, University Hospital at Ruhr University Bochum, Bochum, Germany.
8 Proktologische Praxis Kiel, Kiel, Germany.
9 Department of Dermatology, Pallas Center Winterthur, Pallas Medical Clinics, Winterthur, Switzerland.
10 Institute of Medical Microbiology, University Medical Center, Hamburg-Eppendorf, Hamburg, Germany.
11 Department of Gynecology, Wolfsburg Medical Center, Wolfsburg, Germany.
12 ifi Institute for Interdisciplinary Medicine, Asklepios Medical Center St. Georg, Hamburg, Germany.
13 Institute of Forensic Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
14 Department of Urology, Memmingen Medical Center, Memmingen, Germany.
15 Department of Dermatology, Venereology and Allergology, University Hospital Frankfurt, Frankfurt, Germany.
16 Institute of Pathology, University Hospital Salzburg, Salzburg, Austria.
17 Department of Dermatology and Allergology, Bayreuth Medical Center, Bayreuth, Germany.
18 National Reference Center for Papilloma- and Polyomaviruses, Institute of Virology, University Hospital Cologne, Cologne, Germany.
19 Department of Infectious Disease Epidemiology, Division Vaccine Prevention, Robert Koch Institute (RKI), Berlin, Germany.