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Liberg O, Andrén H, Pedersen HC, Sand H, Sejberg D, Wabakken P, Kesson M, Bensch S.Liberg O, et al. Among authors: pedersen hc.Biol Lett. 2005 Mar 22;1(1):17-20. doi: 10.1098/rsbl.2004.0266.Biol Lett. 2005.PMID: 17148117Free PMC article.