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Sjökvist E, Pfeil BE, Larsson E, Larsson KH.Sjökvist E, et al. Among authors: pfeil be.PLoS One. 2014 Apr 28;9(4):e95227. doi: 10.1371/journal.pone.0095227. eCollection 2014.PLoS One. 2014.PMID: 24777067Free PMC article.
Petri A, Pfeil BE, Oxelman B.Petri A, et al. Among authors: pfeil be.PLoS One. 2013 Jul 8;8(7):e67729. doi: 10.1371/journal.pone.0067729. Print 2013.PLoS One. 2013.PMID: 23861793Free PMC article.