title: Retroperitoneal fibrosis: an extraarticular manifestation of ankylosing spondylitis.
authors.affiliation: University of Toronto, and The Hospital for Sick Children, Toronto, Ontario, Canada. claire.leblanc@sickkids.on.ca
authors.forename: Claire M A
authors.initials: CM
authors.lastname: LeBlanc
authors.forename: Robert D
authors.initials: RD
authors.lastname: Inman
authors.forename: Peter
authors.initials: P
authors.lastname: Dent
authors.forename: Charles
authors.initials: C
authors.lastname: Smith
authors.forename: Paul
authors.initials: P
authors.lastname: Babyn
authors.forename: Ronald M
authors.initials: RM
authors.lastname: Laxer
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D008297:Male; D012185:Retroperitoneal Fibrosis / Q000209:etiology*; D013167:Spondylitis, Ankylosing / Q000150:complications*