Elvinger F, Baldwin C A, Liggett A D, Tang K N, Stallknecht D E
Veterinary Diagnostic and Investigational Laboratory, College of Veterinary Medicine, University of Georgia, Tifton 31794, USA.
J Vet Diagn Invest. 1996 Oct;8(4):481-4. doi: 10.1177/104063879600800414.