title: Coexistence of rheumatoid arthritis and ankylosing spondylitis.
authors.forename: Pınar
authors.initials: P
authors.lastname: Borman
authors.forename: Figen
authors.initials: F
authors.lastname: Ayhan
authors.forename: Müyesser
authors.initials: M
authors.lastname: Okumuş
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications*; D005260:Female; D006801:Humans; D008875:Middle Aged; D013167:Spondylitis, Ankylosing / Q000150:complications* / Q000175:diagnosis