Letters to the Editor
| Autor: | Hedges, Kenneth, Rozovsky, L.E., Rozovsky, F.A., Davis, J. B., Rand, C. G., Chambers, Larry W. |
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| Zdroj: | Canadian Journal of Public Health / Revue Canadienne de Sante'e Publique, 1982 May 01. 73(3), 209-211. |
| Databáze: | JSTOR Journals |
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