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Silva M, Zimmerman BF, Weinberg R, Sarkar NK.Silva M, et al. Among authors: zimmerman bf.Aust Dent J. 1987 Apr;32(2):116-9. doi: 10.1111/j.1834-7819.1987.tb05376.x.Aust Dent J. 1987.PMID: 3476033No abstract available.