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von Engelhardt N, Carere C, Dijkstra C, Groothuis TG.von Engelhardt N, et al. Among authors: carere c.Proc Biol Sci. 2006 Jan 7;273(1582):65-70. doi: 10.1098/rspb.2005.3274.Proc Biol Sci. 2006.PMID: 16519236Free PMC article.