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Pediatria i Medycyna Rodzinna > 2014 > 10 > 2 > 152–162
Polish Journal of Surgery > 2011 > 83 > 6 > 343-346
Comparative Professional Pedagogy > 2011 > 83 > 6 > 343-346
Comparative Professional Pedagogy > 2010 > 82 > 12 > 681-683
Polish Journal of Surgery > 2010 > 82 > 12 > 681-683
Polish Journal of Veterinary Sciences > 2008 > 11 > 4 > 377-383