1. Experimental reproduction of SIRS in pregnant sows;Christianson;Am. Assoc. Swine Pract. News,1992
2. Porcine reproductive and respiratory syndrome: A review;Christianson;Swine Health Prod.,1994
3. A possible explanation for the inability to control PRRS in large herds: The theory of subpopulations;Dee,1995
4. Swine influenza;Easterday,1992
5. PRRS (blue-eared pig disease) in Great Britain;Edwards;Am. Assoc. Swine Pract. News,1992