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Observations on the Classification and Distribution of Pulmonary Emphysema in Canada
General principles of epidemiology are reviewed, using as an example the chronic non-specific respiratory diseases in Canada. Lack of agreement in definition and classification seriously hampers the use of governmental statistics to study the epidemiology of these diseases. Though Canada is experien...
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| Hlavní autor: | |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
1963
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1921986/ https://ncbi.nlm.nih.gov/pubmed/14065074 |
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