Grøntvedt, Carl Andreas Clinical Impact of Infection with Pandemic Influenza (H1N1) 2009 Virus in Naïve Nucleus and Multiplier Pig Herds in Norway. [electronic resource] - Influenza research and treatment 2011 - 163745 p. digital Publication Type: Journal Article ISSN: 2090-1399 Standard No.: 10.1155/2011/163745 doi