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The authors Terry W. Campbell, DVM, PhD, is an Associate Professor Emeritus of Zoological Medicine at the College of Veterinary Medicine and Biomedical Sciences at Colorado State University in Fort Collins, CO, USA, and was the Former Head Veterinarian at the Downtown Aquarium in Denver, CO, USA. Krystan R. Grant, DVM, PhD, CertAqV, is the Director of Pet Health at the PetSmart Home Office in Phoenix, AZ, USA.