1. Clinic for Internal Diseases, Faculty of Veterinary Medicine , University of Zagreb , Heinzelova 55, Zagreb , Croatia
2. ERA Chair project FP7, VetMedZg, Clinic for Internal Diseases, Faculty of Veterinary Medicine , University of Zagreb , Heinzelova 55, Zagreb , Croatia
3. Department of Chemistry and Biochemistry, Faculty of Veterinary Medicine , University of Zagreb , Heinzelova 55, Zagreb , Croatia