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Nielsen LH, Løkkegaard E, Andreasen AH, Keiding N.Nielsen LH, et al. Among authors: andreasen ah.Pharmacoepidemiol Drug Saf. 2008 Apr;17(4):384-8. doi: 10.1002/pds.1549.Pharmacoepidemiol Drug Saf. 2008.PMID: 18213736
Nielsen LH, Løkkegaard E, Andreasen AH, Hundrup YA, Keiding N.Nielsen LH, et al. Among authors: andreasen ah.Pharmacoepidemiol Drug Saf. 2009 Feb;18(2):147-53. doi: 10.1002/pds.1693.Pharmacoepidemiol Drug Saf. 2009.PMID: 19072775