Authors
G. M. Giallombardo
Virginia-Maryland College of Veterinary Medicine, Virginia Tech., Blacksburg, USA
F. R. Carvallo-Chaigneau
Virginia-Maryland College of Veterinary Medicine, Virginia Tech., Blacksburg, USA
M. S. Todd
Virginia-Maryland College of Veterinary Medicine, Virginia Tech., Blacksburg, USA
D. W. Brown
Harrisonburg Regional Animal Health Laboratory, Virginia Department of Agriculture and Consumer Services, Harrisonburg, USA
R. Ramirez-Barrios
Virginia-Maryland College of Veterinary Medicine, Virginia Tech., Blacksburg, USA