Somers, Klaartje; Geusens, Piet; Elewaut, Dirk; 외. (February 2011). “Novel autoantibody markers for early and seronegative rheumatoid arthritis”. 《Journal of Autoimmunity》 (Elsevier) 36 (1): 33–46. doi:10.1016/j.jaut.2010.10.003. ISSN0896-8411. PMID21071175.지원되지 않는 변수 무시됨: |name-list-style= (도움말)
Somers, Klaartje; Geusens, Piet; Elewaut, Dirk; 외. (February 2011). “Novel autoantibody markers for early and seronegative rheumatoid arthritis”. 《Journal of Autoimmunity》 (Elsevier) 36 (1): 33–46. doi:10.1016/j.jaut.2010.10.003. ISSN0896-8411. PMID21071175.지원되지 않는 변수 무시됨: |name-list-style= (도움말)
Ajeganova, Sofia; Huizinga, Tom W J (November 2014). “Rheumatoid arthritis: Seronegative and seropositive RA: alike but different?”. 《Nature Reviews Rheumatology》 (Nature Publishing Group) 11 (1): 8–9. doi:10.1038/nrrheum.2014.194. ISSN1759-4804. PMID25403158. S2CID1405551.지원되지 않는 변수 무시됨: |name-list-style= (도움말)
Somers, Klaartje; Geusens, Piet; Elewaut, Dirk; 외. (February 2011). “Novel autoantibody markers for early and seronegative rheumatoid arthritis”. 《Journal of Autoimmunity》 (Elsevier) 36 (1): 33–46. doi:10.1016/j.jaut.2010.10.003. ISSN0896-8411. PMID21071175.지원되지 않는 변수 무시됨: |name-list-style= (도움말)