title: Does concomitant osteoarthritis affect histopathologic changes in patients with rheumatoid arthritis? Comment on the article by Kraan et al.
authors.forename: Nathan
authors.initials: N
authors.lastname: Wei
mesh_terms: D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000473:pathology / Q000503:physiopathology; D001175:Arthrography; D006801:Humans; D007719:Knee Joint / Q000473:pathology; D020370:Osteoarthritis, Knee / Q000150:complications* / Q000473:pathology / Q000503:physiopathology