... Shulman et al. examines what weunderstand by ‘medication errors’, what we mean by ‘computerizedphysician order entry (CPOE) systems’, how we measure errors,and what types of errors we are ‘reducing’ ... are too often glossed over or assumed to have obviousanswers. Their work obliges us to re-examine ourunderstanding of ‘medication errors’, ‘CPOE’, how wemeasure errors, and what types of errors ... the types of errors and even though we benefitfrom well-accepted error severity scales [2]. If we usepharmacist interventions in determining errors, we areCommentary What do we know about medication...