Author Correction: Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA): updated treatment recommendations for psoriatic arthritis 2021

Affiliations

• ¹ Department of Orthopaedics, Rheumatology, and Musculoskeletal Sciences, University of Oxford, Oxford, UK. laura.coates@ndorms.ox.ac.uk.
• ² University Institute and Rheumatology Unit, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
• ³ Primary Care Centre Versus Arthritis, School of Medicine, Keele University, Staffordshire, UK.
• ⁴ , Oslo, Norway.
• ⁵ University of Utah, Salt Lake City, UT, USA.
• ⁶ Santa Casa de Sao Paulo, Sao Paulo, Brazil.
• ⁷ , Hong Kong, China.
• ⁸ Women's College Research Institute, University of Toronto, Toronto, ON, Canada.
• ⁹ Pontificia Universidad Javeriana - Hospital Universitario San Ignacio, Bogotá, Colombia.
• ¹⁰ School of Medicine, Conway Institute for Biomolecular Research, University College Dublin, Dublin, Ireland.
• ¹¹ Donald and Barbara Zucker School of Medicine at Hofstra Northwell, Hempstead, NY, USA.
• ¹² University of Toronto, Toronto, ON, Canada.
• ¹³ Duke University School of Medicine, Durham, NC, USA.
• ¹⁴ University of Leeds, Leeds, UK.
• ¹⁵ Cleveland Clinic, Cleveland, OH, USA.
• ¹⁶ University of Cambridge, Cambridge, UK.
• ¹⁷ , Haifa, Israel.
• ¹⁸ Department of Dermatology, Royal Berkshire Foundation, Reading, UK.
• ¹⁹ , Windsor, CT, USA.
• ²⁰ Singapore General Hospital, Duke-NUS Medical School, Singapore, Singapore.
• ²¹ , Propser, TX, USA.
• ²² Academic Rheumatology Unit, University of Molise, Campobasso, Italy.
• ²³ Department of Dermatology, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
• ²⁴ Swedish Medical Center/Providence St. Joseph Health and University of Washington, Seattle, WA, USA.
• ²⁵ , Dublin, Ireland.
• ²⁶ Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
• ²⁷ , Eindhoven, The Netherlands.
• ²⁸ Rheumatology Division, Hospital de Clinicas de Porto Alegre, Porto Alegre, Brazil.
• ²⁹ , Seattle, WA, USA.
• ³⁰ , Cleveland, OH, USA.
• ³¹ Department of Medical Humanities, VU University Medical Centre, Amsterdam, Netherlands.
• ³² Division of Rheumatology Allergy and Immunology, University of California, San Diego, La Jolla, CA, USA.