Some things learned.
| Autor: | Bierman JM |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | American journal of public health and the nation's health [Am J Public Health Nations Health] 1969 Jun; Vol. 59 (6), pp. 930-5. |
| DOI: | 10.2105/ajph.59.6.930 |
| Databáze: | MEDLINE |
| Externí odkaz: |
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