Ellen Løkkegaard

发表

Using prescription registries to define continuous drug use: how to fill gaps between prescriptions

Niels Keiding, N. Keiding, A. Andreasen, 2008, Pharmacoepidemiology and drug safety.

Estimating the effect of current, previous and never use of drugs in studies based on prescription registries

Niels Keiding, N. Keiding, A. Andreasen, 2009, Pharmacoepidemiology and drug safety.