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Scaal M, Christ B.Scaal M, et al. Among authors: christ b.Anat Embryol (Berl). 2004 Sep;208(6):411-24. doi: 10.1007/s00429-004-0417-y. Epub 2004 Aug 28.Anat Embryol (Berl). 2004.PMID: 15338303Review.