Exposure misclassification as a result of free sample drug utilization in automated claims databases and its effect on a pharmacoepidemiology study of selective COX-2 inhibitors

Kin-Wei Chan2018-09-102018-09-102004http://www.scopus.com/inward/record.url?eid=2-s2.0-5744235443&partnerID=MN8TOARShttp://scholars.lib.ntu.edu.tw/handle/123456789/305732[SDGs]SDG3Exposure misclassification as a result of free sample drug utilization in automated claims databases and its effect on a pharmacoepidemiology study of selective COX-2 inhibitorsjournal article10.1002/pds.981