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Mafla-Chamorro, A. C.; Luna-Jaramillo, N. A.; Santacruz-Insuasty, A. X.; Palacios-Córdoba, B. D. Prevalence of Chronic Apical Periodontitis in Endodontically Treated Teeth in the Academic Community at Universidad Cooperativa De Colombia, Pasto, 2008. Rev Fac Odontol Univ Antioq 2009, 21, 42-49.