Radiological changes in rheumatoid cervical spines.
D001172:Arthritis, Rheumatoid / Q000000981:diagnostic imaging*; D001269:Atlanto-Occipital Joint; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D011859:Radiography; D013167:Spondylitis, Ankylosing / Q000150:complications