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Frederiksen Y, Farver-Vestergaard I, Skovgård NG, Ingerslev HJ, Zachariae R.Frederiksen Y, et al. Among authors: zachariae r.BMJ Open. 2015 Jan 28;5(1):e006592. doi: 10.1136/bmjopen-2014-006592.BMJ Open. 2015.PMID: 25631310Free PMC article.Review.