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Williams JL, Oliver RA, Morgan AL, Glass EJ, Spooner RL.Williams JL, et al. Among authors: glass ej.Anim Genet. 1991;22(5):407-15. doi: 10.1111/j.1365-2052.1991.tb00700.x.Anim Genet. 1991.PMID: 1776709