[A modified radiographic technique for the x-ray study of the paranasal sinuses].
A cassette frame holder enabling two partial radiograms of the paranasal sinuses in different projections on a single x-ray film is described.
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D006801:Humans; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging*; D011859:Radiography / Q000295:instrumentation*
Modifizierte Aufnahmetechnik für die Röntgenuntersuchung der Nasennebenhöhlen.