1. Andrija Stampar School of Public Health School of Medicine University of Zagreb Zagreb Croatia
2. Welsh Institute of Dermatology University Hospital of Wales Cardiff U.K.
3. Centre for Population Health Sciences Lee Kong Chian School of Medicine Nanyang Technological University Singapore
4. Department of Primary Care and Public Health Imperial College London London U.K.
5. Public Health Program Stetson University DeLand FL U.S.A.
6. Department of Dermatology Harrogate and District NHS Foundation Trust Harrogate U.K.