1. Department of Rehabilitation Science, University at Buffalo, 626 Kimball Tower, Buffalo, New York 14260, USA
2. U.S. Navy Marine Mammal Program, Naval Information Warfare Center Pacific Code 56710, 53560 Hull Street, San Diego, California 92152, USA
3. National Marine Mammal Foundation, 2240 Shelter Island Drive #200, San Diego, California 92106, USA