Can horses be clinically screened for West Nile Fever?, van Galen, G, Calozet L, Leblond A, Tritz P, dal Pozzo F, Porter S R., Cay Ann Brigitte, Amory H, and Saegerman C , Vet Rec, 2013 Jan 26, Volume 172, Issue 4, p.101, (2013)