Issues in identifying asthma and estimating prevalence in an urban school population
| Autor: | Clark, Noreen M *, Brown, Randall, Joseph, Christine L.M, Anderson, Elizabeth W, Liu, Manlan, Valerio, Melissa, Gong, Molly |
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| Zdroj: | In Journal of Clinical Epidemiology 2002 55(9):870-881 |
| Databáze: | ScienceDirect |
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