title: Prevalence and comorbidity of relapsing polychondritis.
authors.affiliation: Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm; Department of Pediatrics, Örebro University Hospital, Örebro, Sweden; Division of Epidemiology and Public Health, School of Medicine, University of Nottingham, Nottingham, UK; Department of Medicine, Celiac Disease Center, Columbia University College of Physicians and Surgeons, New York, NY, USA.
authors.forename: Jonas F
authors.initials: JF
authors.lastname: Ludvigsson
authors.affiliation: Department of Rheumatology, Amsterdam Rheumatology & Immunology Center, Amsterdam, the Netherlands.
authors.forename: Ronald
authors.initials: R
authors.lastname: van Vollenhoven