Hülsmann, M [Clinical verification of measuring accuracy of an electronic apex localizer]. [electronic resource] - Deutsche zahnarztliche Zeitschrift Aug 1989 - 603-5 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0012-1029 Subjects--Topical Terms: Dental InstrumentsDental Pulp Cavity--anatomy & histologyElectronics, MedicalHumansOdontometry--methodsRadiography