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Maan ME, Seehausen O, Söderberg L, Johnson L, Ripmeester EA, Mrosso HD, Taylor MI, van Dooren TJ, van Alphen JJ.Maan ME, et al. Among authors: ripmeester ea.Proc Biol Sci. 2004 Dec 7;271(1556):2445-52. doi: 10.1098/rspb.2004.2911.Proc Biol Sci. 2004.PMID: 15590594Free PMC article.