Lester Mandelker Fellow, American Academy of Veterinary Pharmacology and Therapeutics Community Veterinary Hospital Largo, FL 33770, USA lestervet2@aol.com
Peter Vajdovich Faculty of Veterinary Sciences Department of Internal Medicine and Clinics Szent Istvan University Istvan u. 2, 1143, Budapest, Hungary Vajdovich.Peter@aotk.szie.hu