TY - CPAPER AU - Zhou, C, Bollo, JM, Calvo, E, Perez, I, Perez-Brena, ML TI - COMPARATIVE EVALUATION OF EFFICACY OF SEVERAL COMMERCIAL MYCOPLASMA HYOPNEUMONIAE VACCINES UNDER FIELD CONDITION 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 - 2006 DA - 2006/06/01 L1 - https://www.aasv.org/library/swineinfo/Content/IPVS/2006/RESPIRATORY/O_20-03.pdf SE - Respiratory diseases: Vaccination against respiratory disease ER -