TY - CPAPER AU - G. Spronk, T. Wetzell, R. Philips TI - Modified live PRRS virus vaccination as a key component in nursery pig performance improvement T2 - Allen D. Leman Swine Conference DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2009 DA - 2009/09/01 L1 - https://www.aasv.org/library/swineinfo/Content/LEMAN/2009/research/15-Spronk.pdf SE - Recent Research Reports ER -