Spencer J A, Butler J M, Stafford K C, Pough M B, Levy S A, Bledsoe D L, Blagburn B L
Department of Pathobiology, College of Veterinary Medicine, Auburn University, Alabama, USA.
Parasitol Res. 2003 Jul;90 Suppl 3:S106-7. doi: 10.1007/s00436-003-0904-8. Epub 2003 Aug 19.