Characterization of a subset of bovine T lymphocytes that express BoT4 by monoclonal antibodies and function: Similarity to lymphocytes defined by human T4 and murine L3T4 - Baldwin, Cynthia L.; Teale, A.J.; Naessens, Jan; Goddeeris, Bruno M.; MacHugh, Niall D.; Morrison, W. Ivan (1986)