Occurrence and distribution of Potamogeton hybrids (Potamogetonaceae) in Poland
✍ Scribed by J. Zalewska-Gałosz
- Publisher
- John Wiley and Sons
- Year
- 2002
- Tongue
- English
- Weight
- 273 KB
- Volume
- 113
- Category
- Article
- ISSN
- 0014-8962
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Background Coal production is one of the largest industries in Poland and incidence of coal miners' pneumoconiosis is high. Methods Data concerning the epidemiology of coal miners' pneumoconiosis stem from the national register and previous investigations performed in Poland. Improvements in medical
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