title: Pregnancy diagnosis by ultrasound.
authors.forename: C H
authors.initials: CH
authors.lastname: Lloyd
mesh_terms: D000818:Animals; D002417:Cattle; D002568:Certification; D005260:Female; D006736:Horses; D011247:Pregnancy; D016216:Ultrasonography, Prenatal / Q000662:veterinary*; D014730:Veterinary Medicine / Q000592:standards