van Dijk J, Eagle S J, Gillespie A V, Smith R F, Holman A N, Williams H J
Department of Epidemiology and Population Health, Institute of Infection and Global Health, University of Liverpool, Leahurst, Chester High Road, Cheshire CH64 7TE, UK.
School of Veterinary Science, University of Liverpool, Leahurst, Chester High Road, Cheshire CH64 7TE, UK.
Vet Rec. 2015 Jul 18;177(3):75. doi: 10.1136/vr.102955. Epub 2015 Apr 30.