Professor Xenofon Baraliakos is the Head of Rheumatology at the Rheumazentrum Ruhrgebiet, Herne, Germany, and Professor for Internal Medicine and Rheumatology at the Ruhr-University Bochum, Germany.

Dr Elena Nikiphorou is a consultant rheumatologist at King’s College Hospital, London, UK, and an adjunct senior lecturer at King’s College London, UK.

Professor Robert Landewé is a professor of rheumatology at the Academic Medical Center at the University of Amsterdam, The Netherlands.

Dr Antonio Martorell is a dermatologist at the Hospital de Manises in Valencia, Spain, and an Associate Professor of dermatology at the Catholic University of Valencia. He founded and leads a specialised unit focused mainly on the management of patients with psoriasis, hidradenitis suppurativa and related comorbidities.

Professor José-Manuel Carrascosa-Carrillo is the Head of the Department of Dermatology, Hospital Universitario Germans Trias i Pujol, Universitat Autònoma de Barcelona, Spain, and has been Associate Professor at the Universitat Autònoma de Barcelona since 2009.

Dr Anna Moltó is an attending rheumatologist in the Rheumatology Department of Cochin Hospital, Paris, France, and also acts as a clinical researcher in the INSERM ECAMO team (U-1153) from the University of Paris, France.

Professor Lluís Puig is Director of Dermatology at the Hospital de la Santa Creu i Sant Pau, Barcelona, Spain, and Professor of Dermatology at the University of Barcelona, Spain.

Professor Angela Tincani is a senior consultant (previously director) at the Rheumatology and Clinical Immunology Unit of Aziende Socio Sanitaria Territoriali (ASST)-Spedali Civili and University of Brescia, Italy.

Professor Laure Gossec is Professor of Rheumatology in Sorbonne Université and Pitié-Salpêtrière Hospital, Paris, France. Professor Gossec has a half-time clinical position where she mainly sees patients with inflammatory arthritis, and a half-time teaching and research position.