title: Enzootic abortion in ewes; an investigation into the naturally occurring disease.
authors.forename: A I
authors.initials: AI
authors.lastname: LITTLEJOHN
mesh_terms: D000031:Abortion, Septic; D000034:Abortion, Veterinary; D000818:Animals; D003141:Communicable Diseases; D005260:Female; D011247:Pregnancy; D012756:Sheep