Quantitative clinical rheumatology: why is a test for anti-CCP antibodies included in most routine care for rheumatoid arthritis while a HAQ/MDHAQ remains largely a research tool?
Quantitative clinical rheumatology: why is a test for anti-CCP antibodies included in most routine care for rheumatoid arthritis while a HAQ/MDHAQ remains largely a research tool? J Rheumatol. 2009 Aug; 36(8):1563-4.