Leptospiral antibodies in dairy cattle: some ecological considerations Published on 1972-05-202023-06-22 Journal: The Veterinary Record [저자] G I Twigg, D M Hughes, A McDiarmid [Category] 조류인플루엔자, Pubmed URL [DOI] 10.1136/vr.90.21.598 [Source] pubmed All Keywords