Arévalo et al. Arthritis Research & Therapy (2020) 22:140 https://doi.org/10.1186/s13075-020-02237-5 CORRECTION Open Access Correction to: Influence of HLA-B27 on the Ankylosing Spondylitis phenotype: results from the REGISPONSER database Marta Arévalo1, Jordi Gratacós Masmitjà1*, Mireia Moreno1, Joan Calvet1, Cristobal Orellana1, Desirée Ruiz2, Carmen Castro2, Pilar Carreto2, Marta Larrosa1, Eduardo Collantes2, Pilar Font2 and REGISPONSER group Correction to: Arthritis Res Ther (2018) 20: 221 https://doi.org/10.1186/s13075-018-1724-7 Following publication of the original article [1], the au- Silva H. SAN RAFAEL- Estefanía Moreno Ruzafa HU VIRGEN DE LA VEGA- Car- los Montilla Morales H. VIRGEN DEL ROCÍO- Alicia García López HU MIGUEL thors identified an error in affiliation 1. SERVET- Eugenio Giménez Úbeda H. FUNDACIÓN SON LLATZER- Antonio The correct affiliation is: Juan Más H. INTERNACIONAL MERIMAR- Cristina Medrano Le Quement HU 1 Rheumatology Department, Consorci Corporació NAVARRA- Enrique Ornilla. Sanitària Parc Taulí, Institut d’Investigació i Innovació Author details Parc Taulí I3PT, Departament de Medicina, Universitat 1 Rheumatology Department, Consorci Corporació Sanitària Parc Taulí, Institut Autònoma de Barcelona, Parc Taulí s/n, 08208 Sabadell, d’Investigació i Innovació Parc Taulí I3PT, Departament de Medicina, Universitat Autònoma de Barcelona, Parc Taulí s/n, 08208 Sabadell, Barcelona, Barcelona, Spain. Spain. 2Rheumatology Department, Hospital General Universitario Reina Sofía/IMIBIC/Universidad de Córdoba, Córdoba, Spain. Acknowledgements REGISPONSER group - listed below are the principal investigator. HU REINA SOFÍA- Eduardo Collantes Estévez à Main center and ethical committee H Reference BELLVITGE-Xavier Juanola Roura HU JUAN CANALEJO-Jose Luis Fernández 1. Arévalo M, Gratacós Masmitjà J, Moreno M, et al. Influence of HLA-B27 on the Sueiro HU GREGORIO MARAÑÓN- Carlos González Fernández H. PARC TAULÍ- Ankylosing spondylitis phenotype: results from the REGISPONSER database. Jordi Gratacós Masmitjá CLÍNICA PUERTA HIERRO-Juan Mulero Mendoza H. Arthritis Res Ther. 2018;20:221. https://doi.org/10.1186/s13075-018-1724-7. MONTE NARANCO-Juan Carlos Torre Alonso H DOCE DE OCTUBRE- Pilar Fer- nández Dapica H RAMÓN Y CAJAL- Mª Elia Brito Brito Arévalo et al. Arthritis Research & Therapy (2018) 20:221 Page 5 of 6 HU ALICANTE-Enrique Batlle Gualda H VIRGEN DE LA ARRIXACA- Luis F. Linares Ferrando H. VIRGEN DEL PERPETUO SOCORRO- Enrique Judez Navarro H.G. SAN JORGE- Carlos Váz- quez Galeano H. DE PALAMÓS- Teresa Clavaguera Poch H. MOSTOLES- Mª Cruz Fernández Espartero HU CARLOS HAYA- Enrique Calero Secall H. MUTUA DE TERRASSA- Manuel Pujol Busquets H. DOCTOR NEGRÍN- Carlos Rodríguez Lozano H. SANTA MARÍA DEL ROSELL- Manuel J. Moreno Ramos HU PRÍNCIPE DE ASTURIAS- Eduardo Cuende Quintana HU DE GUADALA- JARA- Manuel Fernández Prada HU CENTRAL DE ASTURIAS- Rubén Queiro The original article can be found online at https://doi.org/10.1186/s13075- 018-1724-7. * Correspondence: jgratacosmas@gmail.com 1 Rheumatology Department, Consorci Corporació Sanitària Parc Taulí, Institut d’Investigació i Innovació Parc Taulí I3PT, Departament de Medicina, Universitat Autònoma de Barcelona, Parc Taulí s/n, 08208 Sabadell, Barcelona, Spain Full list of author information is available at the end of the article © The Author(s). 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.