Author Affiliations +
M. HEIDARI,1 S. D. FITZGERALD,2 H. M. ZHANG,1 R. F. SILVA,1 L. F. LEE,1 J. R. DUNN1
1United States Department of Agriculture, Agriculture Research Service, Avian Disease and Oncology Laboratory, East Lansing, MI 48823
2Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824