In epidemiological prospective cohort studies, exposure levels of cases with disease and disease-free control subjects can be measured by laboratory analysis of previously stored biological specimens. In such studies, a sequential t-test can be used for preliminary evaluations, at the expense of the
โฆ LIBER โฆ
Comparison of two instruments for accelerated weathering tests on plasticized PVC
โ Scribed by Emmanuelle Mathieu; Jean-Louis Laurent
- Publisher
- Elsevier Science
- Year
- 1996
- Tongue
- English
- Weight
- 547 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0141-3910
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