Drupal-Bibcite31<style face="normal" font="default" size="100%">Prevalence of treated asthma and its management in general practice in England and Wales, 1994\textendash1998</style><style face="normal" font="default" size="100%">Prevalence of treated asthma and its management in general practice in England and Wales, 1994\textendash1998</style>