Authors
Barbara Nieradko-Iwanicka
barbaranieradkoiwanicka@umlub.pl
Chair and Department of Hygiene, Medical University of Lublin, Lublin, Poland
Andrzej Borzęcki
Chair and Department of Hygiene, Medical University of Lublin, Lublin, Poland
barbaranieradkoiwanicka@umlub.pl
© 2015 Barbara Nieradko-Iwanicka, Andrzej Borzęcki, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.