1. Empyema of the frontal sinus Author(s): Cobb, Frederic C., author Publication: [Boston?] : [publisher not identified], [1905?] Subject(s): Paranasal Sinus DiseasesFrontal SinusEmpyema
2. The influenza bacillus in paranasal sinus infections Author(s): Crowe, Samuel James, 1883-1955 Publication: [Baltimore? : s.n., 1919?] Subject(s): Paranasal Sinus DiseasesHaemophilus influenzae
