Survey of visitors to a National Park in the savannah region of northeast Brazil: Practices, incidents and hazardous situations
| Autor: | Ariza, Liana, Gomide, Marcia, Ramos, Alberto Novaes, Jr, Leggat, Peter A., Heukelbach, Jörg |
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| Zdroj: | In Travel Medicine and Infectious Disease 2007 5(1):1-6 |
| Databáze: | ScienceDirect |
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