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Huffman BP, Mai S, Pinna L, Weller RN, Primus CM, Gutmann JL, Pashley DH, Tay FR.Huffman BP, et al. Among authors: tay fr.Int Endod J. 2009 Jan;42(1):34-46. doi: 10.1111/j.1365-2591.2008.01490.x.Int Endod J. 2009.PMID: 19125978Clinical Trial.