1. Institute of Infection & Immunity; Cardiff University; Cardiff U.K.
2. Department of Dermatology; Northampton General Hospital NHS Trust; Northampton U.K.
3. Department of Dermatology; University Hospitals Birmingham NHS Foundation Trust; Birmingham U.K.
4. Department of Dermatology; School of Medicine and Dentistry; University of Aberdeen; Aberdeen U.K.
5. St John's Institute of Dermatology; Guy's and St Thomas' NHS Foundation Trust; London U.K.
6. Centre for Trials Research; Cardiff University; Cardiff U.K.
7. The Hidradenitis Suppurativa (HS) Trust; Chatham U.K.
8. Florida Academic Dermatology Center; Larkin Community Hospital; South Miami FL U.S.A.
9. Science Policy and Research; National Institute for Health and Care Excellence (NICE); London U.K.