1. Does canine coronavirus augment the effects of subsequent parvovirus infection?;Appel;Vet Med (Praha),1988
2. Canine distemper virus;Appel;Virology Monographs,1972
3. Giardiasis in dogs and cats;Barr;Compend Contin Educ Pract Vet,1994
4. Viruses recovered from laboratory dogs with respiratory disease;Binn;Proc Soc Exp Biol Med,1967
5. Diagnosis of leptospirosis: A reemerging disease of companion animals;Bolin;Semin Vet Med Surg (Small Anim),1996