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pp.871-873
Published Date 1959/11/20
DOI https://doi.org/10.11477/mf.1492202347

The watch-test was employed in screening a large group of factory warkers for hard of hearing. Those who were detected as the ability of hearing the watch at a distance shorter than what was adopted as the nor-mal were examined later by audiometer. It was found that this means of testing failed to make a quantitative determination of loss of hearing but it was highly useful for ma-king a fast screening of a lage group of em-ployment personnel.


Copyright © 1959, 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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