@misc{9571, author = {C. Edwards and J. Campbell and T. Van Staa and N. Arden}, title = {Regional and temporal variation in the treatment of rheumatoid arthritis across the UK: a descriptive register-based cohort study}, year = {2012}, journal = {BMJ Open}, volume = {2}, number = {6}, issn = {2044-6055}, doi = {10.1136/bmjopen-2012-001603}, }