00432nas a2200157   4500000000100000000000100001008004100002100001300043700001400056700001700070700001300087245012400100300001100224490000700235022003200242       2005                            d1 aJ. Lewis1 aW. Bilker1 aR. Weinstein1 aB. Strom00aThe relationship between time since registration and measured incidence rates in the General Practice Research Database  a443-510 v14  a1053-8569 (Print) 1053-8569