1. The Roslin Institute and The Royal (Dick) School of Veterinary Studies; Division of Veterinary Clinical Studies; University of Edinburgh; Hospital for Small Animals; Easter Bush Veterinary Centre; Roslin Midlothian EH25 9RG UK
2. Centre for Evidence-based Veterinary Medicine; School of Veterinary Medicine and Science; University of Nottingham; Sutton Bonington Campus, College Road Loughborough LE12 5RD UK
3. Vet Epi; White Cottage Dickleburgh Norfolk IP21 4NT UK
4. School of Public Health; Imperial College London; St Mary's Campus, Norfolk Place London W2 1PG UK