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Lua i Stíl Chicago (17ú heag.)Fisher, B., agus P. Taylor. Etanercept Plus Sulfasalazine: Added Value in Rheumatoid Arthritis? 2007.
Lua MLA (9ú heag.)Fisher, B., agus P. Taylor. Etanercept Plus Sulfasalazine: Added Value in Rheumatoid Arthritis? 2007.
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