title: [Report of a case with hemophilia B complicated with traumatic nosebleed as the first symptom].
authors.forename: Huan-xin
authors.initials: HX
authors.lastname: Yu
authors.forename: Gang
authors.initials: G
authors.lastname: Liu
mesh_terms: D004844:Epistaxis / Q000175:diagnosis / Q000209:etiology*; D002836:Hemophilia B / Q000150:complications* / Q000175:diagnosis; D006801:Humans; D008297:Male; D055815:Young Adult