Zadik Y, Sandler V, Bechor R, Salehrabi R (August 2008). "Analysis of factors related to extraction of endodontically treated teeth". Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 106 (5): e31 –e35. doi:10.1016/j.tripleo.2008.06.017. PMID18718782.
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pubmed.ncbi.nlm.nih.gov
Zadik Y, Sandler V, Bechor R, Salehrabi R (August 2008). "Analysis of factors related to extraction of endodontically treated teeth". Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 106 (5): e31 –e35. doi:10.1016/j.tripleo.2008.06.017. PMID18718782.