title: False positive seroreactions for syphilis in connection with erythema nodosum.
authors.forename: S
authors.initials: S
authors.lastname: LOFGREN
mesh_terms: D004893:Erythema Nodosum; D006801:Humans; D013587:Syphilis; D013588:Syphilis Serodiagnosis
keywords: ERYTHEMA/nodosum; SYPHILIS/serodiagnosis