Epidemiological methods for identification and management of risk factors for production diseases in the dairy cow.
作者信息
Agger J F
机构信息
Department of Animal Science and Animal Health, Royal Veterinary and Agricultural University, Frederiksberg C, Denmark.
出版信息
Acta Vet Scand Suppl. 1993;89:69-70.
PMID:8237668
Abstract
摘要
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