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Author(s): Seppälä, A. J. Title: *Variations in the pneumatic cell system of the temporal bone; acute otitis media and complications in varying types of pneumatization. Subject(s): Middle-Ear inflammation [ Otitis media ] Pneumatization of bone Pagination: 131p. Place of Publication: Helsin. Date of Publication: 1946 Size: 23 ½cm. Reference Note: Also forms Suppl. 64, Acta otolar., Helsin. Language: English Type of Resource: Dissertation Series/Volume/Page: Series 4/Volume 11/Page 194