लेखक: Steven McCulloch

Christopher Wathes, Professor of Animal Welfare at the Royal Veterinary College. Sandra Corr, Clinical Reader in Small Animal Surgery at the University of Nottingham. Stephen May, Deputy Principal and Vice Principal for Teaching at the Royal Veterinary College. Steven Mc Culloch, veterinary surgeon and Ph D student at the Royal Veterinary College. Martin Whiting, veterinary surgeon and Ph D student at the Royal Veterinary College.