Gordon, J M Concentration of tetracycline in human gingival fluid after single doses. [electronic resource] - Journal of clinical periodontology Apr 1981 - 117-21 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0303-6979 Standard No.: 10.1111/j.1600-051x.1981.tb02351.x doi Subjects--Topical Terms: Gingival Crevicular Fluid--analysisGingivitisHumansTetracycline--analysis