Received: 23 March 2017
Accepted: 17 January 2018
First Online: 5 February 2018
: The study was carried out using stored blood samples which had been collected for clinical and laboratory purposes independent of the study with the agreement of the cat owners who presented their cats to the Veterinary Teaching Hospital (University of Sassari). As stored blood samples were used, no separate ethical approval was required for the study. All efforts were made to minimise the discomfort of the animals during sampling.
: Not applicable.
: The authors declare that they have no competing interests.
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