作者单位:
Virginia Polytech Inst & State Univ, Virginia Maryland Coll Vet Med, Dept Biomed Sci & Pathobiol, 1981 Kraft Dr, Blacksburg, VA 24061 USA
[1]
Univ Calif Davis, Calif Anim Hlth & Food Safety Lab Syst, Tulare, CA 93274 USA
[2]
Univ Calif Davis, Sch Vet Med, Dept Populat Hlth & Reprod, Davis, CA 95616 USA
[3]
发布时间
2017-04-06