1. Involvement of the cervical spine in rheumatoid arthritis;Halla;Arthritis Rheum,1989
2. Rheumatoid arthritis of the cervical spine;Bland;J Rheumatol,1974
3. Atlantoaxial disorders in rheumatoid arthritis associate with the destruction of peripheral and shoulder joints, and decreased bone mineral density;Neva;Clin Exp Rheumatol,2003
4. Prevalence of radiological changes in the cervical spine-a cross-sectional study after 20 years from presentation of rheumatoid arthritis;Neva;J Rheumatol,2000
5. Combination drug therapy retards the development of rheumatoid atlantoaxial subluxations;Neva;Arthritis Rheum,2000