[A new ear plug].
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Ear Protective Devices↗
Biomedical subjects
G V HULTGREN
Publications and source records attributed to G V HULTGREN.
[Simple refractometer for determination of visual acuity].
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Humans↗
[Investigation concerning health risks in the handling of talc].
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Humans↗
[An actual investigation; noise and noise injuries at Liljeholmen Cable Factory; with special reference to hearing control].
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Hearing↗
[Industrial medicine in Sweden].
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Humans↗