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Davis EO, Evans IJ, Johnston AW.Davis EO, et al. Among authors: johnston aw.Mol Gen Genet. 1988 Jun;212(3):531-5. doi: 10.1007/BF00330860.Mol Gen Genet. 1988.PMID: 3419422
Johnston AW, Bibb MJ, Beringer JE.Johnston AW, et al.Mol Gen Genet. 1978 Oct 24;165(3):323-30. doi: 10.1007/BF00332533.Mol Gen Genet. 1978.PMID: 105238