1. Immunity in the fetus and newborn animal;Tizard,1977
2. Control of canine distemper;Chappuis;Vet. Microbiol.,1995
3. Transfer and decline of maternal infectious canine hepatitis antibody in puppies;Carmichael,1962
4. Feline viral infections;Gillespie;Adv. Vet. Sci,1973
5. Immunité chez le foetus et le nouveau-né;Silim,1990