HWANG, J Production of passive immunity against viral hepatitis in white Pekin ducklings. [electronic resource] - Journal of the American Veterinary Medical Association Dec 1962 - 1474-5 p. digital Publication Type: Journal Article ISSN: 0003-1488 Subjects--Topical Terms: AnimalsCommunicable DiseasesDucksHepatitisHepatitis APoultry DiseasesViral Vaccines