Tuffanelli, D L Narcotic addiction with false-positive reaction for syphilis. Immunologic studies. [electronic resource] - Acta dermato-venereologica 1968 - 542-6 p. digital Publication Type: Journal Article ISSN: 0001-5555 Subjects--Topical Terms: AdultFalse Positive ReactionsFemaleHumansMaleMiddle AgedSubstance-Related DisordersSyphilis Serodiagnosisgamma-Globulins--analysis