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Keller Larkin M, Deng WM, Holder K, Tworoger M, Clegg N, Ruohola-Baker H.Keller Larkin M, et al.Dev Genes Evol. 1999 May;209(5):301-11. doi: 10.1007/s004270050256.Dev Genes Evol. 1999.PMID: 11252183
Jordan KC, Schaeffer V, Fischer KA, Gray EE, Ruohola-Baker H.Jordan KC, et al.BMC Dev Biol. 2006 Mar 16;6:16. doi: 10.1186/1471-213X-6-16.BMC Dev Biol. 2006.PMID: 16542414Free PMC article.