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Isolation and Identification of H9 Subtype Avian Influenza Virus and Cross-immunity Protection in Some Regions of Henan Province
张晓娟 刘媛媛 王俊亚 李新生 高文明 李双亮 李燕 崔保安
Chinese Agricultural Science Bulletin . 2012, (26): 67 -70 .  DOI: 10.11924/j.issn.1000-6850.2012-2072