By Sidney William Douglas, Hamar David Williamson
By Alexander, Frank
By Andrew W. Speedy
By Allan Fraser, J.T. Stamp
By Doxey, D.L.
By Drake PhD FAAA, Richard, Vogl PhD FAAA, A. Wayne, Mitchell MB BS FRCS FRCR, Adam W. M.
By National Research Council, Division on Earth and Life Studies, Board on Agriculture and Natural Resources, Committee on Animal Nutrition, Subcommittee on Dog and Cat Nutrition
By VV, AA
By Marthe Kiley-Worthington
By Dwight D. Bowman (Associate Professor of Parasitology, Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY, USA)
By Donald C. Plumb
By Lila Miller, Kate Hurley
By Lila Miller (American Society for the Prevention of Cruelty to Animals, New York, NY), Stephen Zawistowski (American Society for the Prevention of Cruelty to Animals
By Ian R. Tizard, PhD, BSc, BVMS
By James Herriot
By Andrew Higgins
By Lisa M. Greenhill, Kauline Cipriani Davis, Patricia M. Lowrie
By Jane E. Sykes (Professor, University of California-Davis)
By James S. Gaynor, William W. Muir
By Grant, David
By Eckert, Roger, Randall, D.J., Burggren, Warren, French, Kathleen, Burggren, Warren W., French, Kathleen
By Christopher E I Day
By Edward Boden
By Dave Holderread
By Vanessa Britton
By Merck
By Bruce Fogle
By Dr Graham R Duncanson (Westover Veterinary Centre, UK)
By Peter Cockcroft (Cambridge Expert VETS), Mark Holmes (University of Cambridge Veterinary School)
By Stephen A. Greene (Associate Professor of Veterinary Anesthesia, Department of Veterinary Clinical Medicine, College of Veterinary Medicine, University of Illinois, Urbana, IL)