Received: 3 April 2020
Accepted: 30 October 2020
First Online: 11 November 2020
Ethics approval and consent to participate
: No ethical/welfare authority approval was required as samples were collected post-mortem after animals death or obtained at the request of the owner for diagnostic purposes from live animals, by certified veterinarians. Study was handled according to good veterinary practice and Polish veterinary regulations and was performed after animals natural death. Written informed consent from the owner of the animals was obtained to use the clinical data in our study.
: Written consent in Polish to publish all clinical details has been obtained. These records are held by authors.
: The authors declare that they have no conflict of interest.