Drupal-Bibcite31<style face="normal" font="default" size="100%">Specific therapeutic group age-sex related prescribing units (STAR-PUs): weightings for analysing general practices\textquoteright prescribing in England</style><style face="normal" font="default" size="100%">Specific therapeutic group age-sex related prescribing units (STAR-PUs): weightings for analysing general practices\textquoteright prescribing in England</style>