title: A knotty problem.
authors.forename: J U
authors.initials: JU
authors.lastname: Wilson
mesh_terms: D000328:Adult; D004844:Epistaxis / Q000209:etiology; D004869:Equipment Safety; D006470:Hemorrhage / Q000628:therapy*; D006801:Humans; D007441:Intubation, Gastrointestinal / Q000295:instrumentation*; D008297:Male; D014068:Tonsillectomy / Q000009:adverse effects*