[1] Croatian Vet Inst, Lab Residue Control, Dept Vet Publ Hlth, Zagreb, Croatia
[2] Croatian Vet Inst, Dept Bacteriol & Parasites, Lab Mastitis & Raw Milk Qual, Zagreb, Croatia
[3] Univ Zagreb, Fac Vet Med, Zagreb 41000, Croatia
[4] Vet Off Bosnia & Herzegovina, Sarajevo, Bosnia & Herceg
[5] Croatian Vet Inst, Dept Bacteriol & Parasites, Lab Bacterial Zoonoses & Mol Diagnost Bacterial D, Zagreb, Croatia