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BioRisk 6: 41-60
doi:
10.3897/biorisk.6.1568
Approved:
07 Nov 2011 | Published:
19 Dec 2011
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Authors
Evelina Daskalova
- Corresponding author
University of Plovdiv, Plovdiv, Bulgaria
University of Plovdiv, Bulgaria
University of Plovdiv, Bulgaria
University of Plovdiv, Bulgaria
University of Plovdiv, Bulgaria
Conflict of interest
The authors have declared that no competing interests exist.
Supporting agencies
National Science Fund of Bulgaria
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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