![](/img/cover-not-exists.png)
Estimating the effect of current, previous and never use of drugs in studies based on prescription registries
Lars Hougaard Nielsen, Ellen Løkkegaard, Anne Helms Andreasen, Yrsa Andersen Hundrup, Niels KeidingVolume:
18
Year:
2009
Language:
english
Pages:
7
DOI:
10.1002/pds.1693
File:
PDF, 109 KB
english, 2009