Prati, C., Azizi, A., Pirani, C., Zamparini, F., Iacono, F., Montebugnoli, L. and Gandolfi, M. G. (2018) “Apical surgery vs apical surgery with simultaneous orthograde retreatment: A prospective cohort clinical study of teeth affected by persistent periapical lesion”, Giornale Italiano di Endodonzia, 32(1), pp. 2–8. doi: 10.32067/gie.2018.32.01.02.