Endoparasites of the European beaver (Castor fiber L. 1758) in north-eastern Poland
Aleksander W. Demiaszkiewicz, Jacek Lachowicz, Izabela Kuligowska, Anna M. Pyziel, Grzegorz Bełżecki, Renata Miltko, Barbara Kowalik, Wojciech Gogola, Zygmunt Giżejewski
Prevalence of Dirofilaria repens in dogs in central-eastern Poland and histopathological changes caused by this infection
Barbara Osińska, Aleksander W. Demiaszkiewicz, Anna M. Pyziel, Izabella Dolka