00439nas a2200145   4500000000100000000000100001008004100002100001300043700001400056700001500070245015800085300001000243490000800253022003200261       1995                            d1 aD. Lloyd1 aC. Harris1 aD. Roberts00aSpecific therapeutic group age-sex related prescribing units (STAR-PUs): weightings for analysing general practices\textquoteright prescribing in England  a991-40 v311  a0959-8138 (Print) 0959-8138