00765nas a2200253   4500000000100000000000100001008004100002653002900043653003000072653001400102653002200116653003900138653001200177653002500189100001200214700001300226700001300239700001200252700001500264700001300279245019000292250001500482020001400497       2023                            d10aDrug Exposure Definition10aElectronic Health Records10aFree Text10aMisclassification10aNarrative Prescribing Instructions10aOpioids10apharmacoepidemiology1 aM. Jani1 aB. Yimer1 aD. Selby1 aM. Lunt1 aG. Nenadic1 aW. Dixon00a"Take up to eight tablets per day": Incorporating free-text medication instructions into a transparent and reproducible process for preparing drug exposure data for pharmacoepidemiology  a2023/02/01  a1053-8569