1. Nofima AS; Sunndalsøra; Norway
2. University of Barcelona; Department of Animal Physiology; Barcelona; Spain
3. The Conservation Fund's Freshwater Institute; Shepherdstown; WV; USA
4. Washington Animal Disease Diagnostic Laboratory; Department of Veterinary, Microbiology and Pathology; College of Veterinary Medicine; Washington State University; Pullman; WV; USA
5. Nofima AS; Ås; Norway