1. Isolation of Mycoplasma flocculare from swine in the United States;Armstrong;Am. J. Vet. Res.,1981
2. The enzymelinked immunosorbent assay (ELISA) for diagnosing mycoplasmal pneumonia of swine;Armstrong,1978
3. Comparison of the enzyme-linked immunosorbent assay, the indirect hemagglutination test and the complement fixation test for detecting antibodies to Mycoplasma hyopneumoniae;Armstrong;Can. J. Comp. Med.,1983
4. Hemagglutination with aldehydefixed erythrocytes for assay of antigens and antibodies;Bing,1967
5. Quantitative detection of antibodies to Mycoplasma suipneumoniae in pigs' sera by an enzyme-linked immunosorbent assay;Bruggmann;Vet. Rec.,1977