PRRS: trans-Atlantic cooperation and new ideas.
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D000818:Animals; D005260:Female; D007247:Infertility, Female / Q000517:prevention & control / Q000662:veterinary*; D007391:International Cooperation; D008171:Lung Diseases / Q000517:prevention & control / Q000662:veterinary*; D013552:Swine; D013553:Swine Diseases / Q000517:prevention & control*; D013577:Syndrome