TY - CPAPER AU - William G. Van Alstine, DVM, PhD; Gregory W. Stevenson, DVM, PhD; Charles L. Kanitz, DVM, PhD TI - Diagnosis of porcine reproductive and respiratory syndrome 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 - 1993 DA - 1993/01/01 L1 - https://www.aasv.org/library/swineinfo/Content/SHAP/1993/v1n4p24.pdf ER -