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Peñarrocha, María; Carrillo, Celia; Peñarrocha, Miguel; Peñarrocha, David; von Arx, Thomas; Vera, Francisco (2011). Symptoms before periapical surgery related to histologic diagnosis and postoperative healing at 12 months for 178 periapical lesions. Journal of oral and maxillofacial surgery, 69(6), e31-7. Maryland Heights, Mo.: Elsevier 10.1016/j.joms.2010.07.044
