title: The etiology of acute nongonococcal urethritis--the enigma of idiopathic urethritis?
authors.forename: Patrick
authors.initials: P
authors.lastname: Horner
mesh_terms: D006801:Humans; D008297:Male; D012725:Sexual Behavior; D012747:Sexual Partners; D012959:Socioeconomic Factors; D014526:Urethritis / Q000209:etiology* / Q000382:microbiology