00485nas a2200193 4500000000100000008004100001100001200042700001600054700001700070700001500087700001800102700001400120700001500134700001400149245009800163300000800261490000800269022001400277 2012 d1 aT. Staa1 aB. Goldacre1 aM. Gulliford1 aJ. Cassell1 aM. Pirmohamed1 aA. Taweel1 aB. Delaney1 aL. Smeeth00aPragmatic randomised trials using routine electronic health records: putting them to the test ae550 v344 a0959-8138