Hathorn, Iain F Randomized controlled trial: hybrid technique using balloon dilation of the frontal sinus drainage pathway. [electronic resource] - International forum of allergy & rhinology Feb 2015 - 167-73 p. digital Publication Type: Journal Article; Randomized Controlled Trial ISSN: 2042-6984 Standard No.: 10.1002/alr.21432 doi Subjects--Topical Terms: Chronic DiseaseDilatation--instrumentationDrainage--instrumentationEndoscopy--methodsEquipment DesignFemaleFrontal Sinus--surgeryFrontal Sinusitis--surgeryHumansMaleMiddle AgedProspective StudiesRhinitis--surgerySingle-Blind MethodTreatment Outcome