title: Comment on "Paranasal sinus opacification in headache sufferers: A population-based imaging study (the HUNT study-MRI)".
authors.affiliation: 1 Mayo Clinic College of Medicine, Department of Otorhinolaryngology - Head & Neck Surgery, Phoenix, AZ, USA.
authors.forename: Devyani
authors.initials: D
authors.lastname: Lal
authors.affiliation: 2 Uniformed Services University, Bethesda, MD, USA.
authors.forename: Ann I
authors.initials: AI
authors.lastname: Scher
mesh_terms: D006261:Headache; D006801:Humans; D008279:Magnetic Resonance Imaging; D010256:Paranasal Sinuses; D012107:Research Design