SCHMID, E E VDRL slide flocculation reaction for syphilis performed on active sera. [electronic resource] - The British journal of venereal diseases Mar 1955 - 37-9 p. digital Publication Type: Journal Article ISSN: 0007-134X Standard No.: 10.1136/sti.31.1.37 doi Subjects--Topical Terms: FlocculationHumansOxidation-ReductionSyphilis--diagnosis