1. Preclinical Institute, Faculty of Veterinary Medicine, Latvia University of Life Sciences and Technologies, K. Helmana Street 8, Jelgava, LV 3004, Latvia
2. Statistics Unit, Riga Stradins University, Balozu Street 14, Riga, LV 1007, Latvia
3. Department of Biosystematics, Institute of Life Sciences and Technology, Daugavpils University, Parades Street 1a, Daugavpils, LV 5401, Latvia