00400nas a2200169   4500000000100000000000100001008004100002100001700043700001400060700001600074700001700090700001700107245007500124300001000199490000700209022001400216       2009                            d1 aL. Rodriguez1 aL. Tolosa1 aA. Ruigomez1 aS. Johansson1 aM. Wallander00aRheumatoid arthritis in UK primary care: incidence and prior morbidity  a173-70 v38  a0300-9742