TY - CPAPER AU - Holyoake PK, Callinan APL TI - How effective is Mycoplasma hyopneumoniae vaccination in pigs less than three weeks of age? T2 - Journal of Swine Health and Production DP - American Association of Swine Veterinarians DB - AASV Swine Information Library UR - https://www.aasv.org/library/swineinfo/ PY - 2006 DA - 2006/07/01 L1 - https://www.aasv.org/library/swineinfo/Content/SHAP/2006/v14n4p189.pdf SE - Jul-Aug ER -