title: [Prolonged asymptomatic presence of a foreign body in the retropharyngeal space].
authors.forename: M P
authors.initials: MP
authors.lastname: Ashmarin
authors.forename: V I
authors.initials: VI
authors.lastname: Karachkin
authors.forename: O M
authors.initials: OM
authors.lastname: Ashmarin
mesh_terms: D000368:Aged; D005260:Female; D005547:Foreign Bodies / Q000601:surgery*; D006801:Humans; D007828:Laryngoscopy; D010614:Pharynx / Q000601:surgery*; D013997:Time Factors