Paranasal sinus radiology, part IA: introduction andthe frontal sinuses.
D005626:Frontal Sinus / Q000000981:diagnostic imaging*; D006801:Humans; D010254:Paranasal Sinus Diseases / Q000000981:diagnostic imaging*; D010255:Paranasal Sinus Neoplasms / Q000000981:diagnostic imaging; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D012852:Sinusitis / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed