Onicescu, D [Cholinergic innervation of the normal gingiva and its changes in chronic marginal parodontitis]. [electronic resource] - Stomatologia - 107-12 p. digital Publication Type: Journal Article ISSN: 0039-1719 Subjects--Topical Terms: Cholinesterases--metabolismGingiva--enzymologyHistocytochemistryHumansPeriodontitis--enzymology