Singh, JA; Saag, KG; Bridges SL, Jr; Ak l; dll. (January 2016). "2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis". Arthritis & Rheumatology. 68 (1): 1–26. doi:10.1002/art.39480. PMID26545940. Explicit use of et al. in: |first4= (bantuan)
Singh, JA; Wells, GA; Christensen, R; dll. (16 February 2011). "Adverse effects of biologics: a network meta-analysis and Cochrane overview". The Cochrane Database of Systematic Reviews (2): CD008794. doi:10.1002/14651858.CD008794.pub2. PMID21328309. Explicit use of et al. in: |last4= (bantuan)
Efthimiou P, Kukar M (2010). "Complementary and alternative medicine use in rheumatoid arthritis: proposed mechanism of action and efficacy of commonly used modalities". Rheumatology International. 30 (5): 571–86. doi:10.1007/s00296-009-1206-y. PMID19876631.
Landré-Beauvais AJ (1800). La goutte asthénique primitive (doctoral thesis). Paris. reproduced in Landré-Beauvais AJ (2001). "The first description of rheumatoid arthritis. Unabridged text of the doctoral dissertation presented in 1800". Joint Bone Spine. 68 (2): 130–43. doi:10.1016/S1297-319X(00)00247-5. PMID11324929.
Singh, JA; Saag, KG; Bridges SL, Jr; Ak l; dll. (January 2016). "2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis". Arthritis & Rheumatology. 68 (1): 1–26. doi:10.1002/art.39480. PMID26545940. Explicit use of et al. in: |first4= (bantuan)
Singh, JA; Wells, GA; Christensen, R; dll. (16 February 2011). "Adverse effects of biologics: a network meta-analysis and Cochrane overview". The Cochrane Database of Systematic Reviews (2): CD008794. doi:10.1002/14651858.CD008794.pub2. PMID21328309. Explicit use of et al. in: |last4= (bantuan)
Efthimiou P, Kukar M (2010). "Complementary and alternative medicine use in rheumatoid arthritis: proposed mechanism of action and efficacy of commonly used modalities". Rheumatology International. 30 (5): 571–86. doi:10.1007/s00296-009-1206-y. PMID19876631.
Landré-Beauvais AJ (1800). La goutte asthénique primitive (doctoral thesis). Paris. reproduced in Landré-Beauvais AJ (2001). "The first description of rheumatoid arthritis. Unabridged text of the doctoral dissertation presented in 1800". Joint Bone Spine. 68 (2): 130–43. doi:10.1016/S1297-319X(00)00247-5. PMID11324929.
"Handout on Health: Rheumatoid Arthritis". National Institute of Arthritis and Musculoskeletal and Skin Diseases. August 2014. Diarkibkan daripada yang asal pada June 30, 2015. Dicapai pada July 2, 2015.
"Handout on Health: Rheumatoid Arthritis". National Institute of Arthritis and Musculoskeletal and Skin Diseases. August 2014. Diarkibkan daripada yang asal pada June 30, 2015. Dicapai pada July 2, 2015.
Singh, JA; Saag, KG; Bridges SL, Jr; Ak l; dll. (January 2016). "2015 American College of Rheumatology Guideline for the Treatment of Rheumatoid Arthritis". Arthritis & Rheumatology. 68 (1): 1–26. doi:10.1002/art.39480. PMID26545940. Explicit use of et al. in: |first4= (bantuan)
Singh, JA; Wells, GA; Christensen, R; dll. (16 February 2011). "Adverse effects of biologics: a network meta-analysis and Cochrane overview". The Cochrane Database of Systematic Reviews (2): CD008794. doi:10.1002/14651858.CD008794.pub2. PMID21328309. Explicit use of et al. in: |last4= (bantuan)