Physical condition of workers with radium ; Oral hygiene in public schools.
| Korporátní autor: | |
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| Typ dokumentu: | Kniha |
| Jazyk: |
angličtina |
| Vydavatel: |
Washington :
Government Printing Office,
1923.
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| Edice: |
Public Helath Reports ;
Vol. 38, No. 51 (December 21, 1923) |
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