1. Animal Dermatology South, 7741 Congress Street, New Port Richey, FL 34653, USA
2. Merck & Co. Inc.,126 E. Lincoln Ave, Rahway, NJ 07065, USA
3. Merck Animal Health, 128 E. Lincoln Ave, Rahway, NJ 07065, USA
4. Sure Petcare, Ground Floor, Building 2030, Cambourne Business Park, Cambourne CB23 6DW, UK