00365nas a2200157   4500000000100000000000100001008004100002100001400043700001400057700002300071700001300094245006900107300001000176490000700186022001400193       2009                            d1 aS. Turner1 aM. Thomas1 aJ. von Ziegenweidt1 aD. Price00aPrescribing trends in asthma: a longitudinal observational study  a16-220 v94  a0003-9888