1. University of California Davis, School of Veterinary Medicine, Graduate Group in Epidemiology
2. Department of Epidemiology and Biostatistics, School of Public Health, College of Health Sciences, Addis Ababa University
3. Department of Microbiology, Immunology and Parasitology, School of Medicine, College of Health Sciences, Addis Ababa University
4. HPV Research, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institutes of Health, Augustenburgerplatz 1, 13353
5. Global Health Working Group, Institute of Medical Epidemiology, Biometrics and Informatics, Martin Luther University