Shi, Lizheng; Wu, Eric Q; Hodges, Meredith; Yu, Andrew; … - In: PharmacoEconomics 25 (2007) 7, pp. 563-576
Retrospective database analyses pose a series of methodological challenges, some of which are unique to their data sources, particularly in countries outside the US. This study aimed to qualitatively review the methodological challenges of using non-US databases to conduct retrospective economic...