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2. A concept of humoral immunity among ruminants and an approach to its investigation;Butler,1981
3. Antibody containing cells and specialized epithelial cells in the bovine teat;Collins;Res. Vet. Sci.,1986
4. Defenses of the mammary gland against infection and prospects for their enhancement;Craven;Vet. Immunol. Immunopathol.,1985
5. IgA, IgG1, IgG2, IgM and BSA in serum and mammary secretions throughout lactation;Guidry;Vet. Immunol. Immunopathol.,1980