title: [Diagnosis at a glance. After oral sex an ulcer on the tongue].
authors.affiliation: Klinik für Dermatologie, Allergologie und Venerologie, Universitätsklinikum Essen.
authors.forename: Andreas
authors.initials: A
authors.lastname: Körber
authors.forename: Joachim
authors.initials: J
authors.lastname: Dissemond
mesh_terms: D000328:Adult; D002601:Chancre / Q000175:diagnosis* / Q000635:transmission; D003937:Diagnosis, Differential; D005194:Family Practice; D005928:Glossitis / Q000175:diagnosis* / Q000209:etiology; D018451:Homosexuality, Male; D006801:Humans; D008297:Male; D012725:Sexual Behavior; D012749:Sexually Transmitted Diseases / Q000175:diagnosis* / Q000635:transmission; D047568:Unsafe Sex