Franklin D. McMillan, DVM, is board-certified in the specialty of veterinary internal medicine. He practiced medicine in Los Angeles from 1984 until 2007, when he joined the team at Best Friends Animal Sanctuary. In addition to his private practice, Dr. Frank was a clinical professor of medicine at Western University of Health Sciences College of Veterinary Medicine. Dr. Frank’s special area of interest is the mental health and emotional well-being of animals, especially those that have suffered psychological trauma. He has published dozens of papers in scientific journals, and is the author of "Mental Health and Well-Being in Animals" – a textbook used in countries all over the world .