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pp.374-377
Published Date 1951/9/20
DOI https://doi.org/10.11477/mf.1492200546

KOIDE devises a metnod by which patency of the Eustachian tube may be accurately recorded. A kymogsaph is constructed with provision of film holder and lens attachment. This is placed at the orifice of the Eustachian tube under proper light facilities. Simultaneously with this picture taking movements of the tympanic membrane and intra-nasal pressure changes are recorded with manome-ters consisting of water and mercury for respecti-ve uses.


Copyright © 1951, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 印刷版ISSN 0386-9679 医学書院

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