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Nimmo A, Mitchell GS, Penfield RD, Hall A.Nimmo A, et al. Among authors: mitchell gs.J Prosthodont. 2007 Sep-Oct;16(5):400-5. doi: 10.1111/j.1532-849X.2007.00226.x. Epub 2007 Aug 2.J Prosthodont. 2007.PMID: 17672831
Dolan TA, McNaughton CA, Davidson SN, Mitchell GS.Dolan TA, et al. Among authors: mitchell gs.Spec Care Dentist. 1992 Jan-Feb;12(1):15-20. doi: 10.1111/j.1754-4505.1992.tb00400.x.Spec Care Dentist. 1992.PMID: 10895734Clinical Trial.