TY - CPAPER AU - K Han, HW Seo, Y Oh, C Park, C Chae TI - The effects of North American porcine reproductive and respiratory syndrome virus (PRRSv)-based modified live vaccine in preimmunized sows artificially inseminated with European PRRSv spiked semen T2 - International Pig Veterinary Society Congress DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2012 DA - 2012/06/01 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2012/287.pdf SE - Virology & Viral Diseases ER -