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Alwin NP, Murray JJ, Britton PG.Alwin NP, et al. Among authors: murray jj.Br Dent J. 1991 Oct 5;171(7):201-7. doi: 10.1038/sj.bdj.4807661.Br Dent J. 1991.PMID: 1910981
Hill KB, Chadwick B, Freeman R, O'Sullivan I, Murray JJ.Hill KB, et al. Among authors: murray jj.Br Dent J. 2013 Jan;214(1):25-32. doi: 10.1038/sj.bdj.2012.1176.Br Dent J. 2013.PMID: 23306496