00546nas a2200205 4500000000100000000000100001008004100002100001700043700001200060700001400072700001300086700001200099700001200111700001600123700001500139245015500154300001100309490000600320022001400326 2013 d1 aA. Nicholson1 aE. Ford1 aK. Davies1 aH. Smith1 aG. Rait1 aA. Tate1 aI. Petersen1 aJ. Cassell00aOptimising use of electronic health records to describe the presentation of rheumatoid arthritis in primary care: a strategy for developing code lists ae548780 v8 a1932-6203