Sampling and field procedures of the Pittsburgh morbidity survey.
| Autor: | HORVITZ DG |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Public health reports (Washington, D.C. : 1896) [Public Health Rep (1896)] 1952 Oct; Vol. 67 (10), pp. 1003-12. |
| Databáze: | MEDLINE |
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