The active comparator, new user study design in pharmacoepidemiology: historical foundations and contemporary application.
Curr Epidemiol Rep. 2015 Dec;2(4):221-228. doi: 10.1007/s40471-015-0053-5. Epub 2015 Sep 30.
Curr Epidemiol Rep. 2015.
PMID: 26954351
Free PMC article.