Nippon Eiseigaku Zasshi (Japanese Journal of Hygiene)
Online ISSN : 1882-6482
Print ISSN : 0021-5082
ISSN-L : 0021-5082
Some aspect of school health in class room
Influence of some factors on the visual acuity in blackboad-writing
Hideo Karatsu
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1960 Volume 15 Issue 5 Pages 329-338

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