Purified bovine WC1+ gamma delta T lymphocytes are activated by staphylococcal enterotoxins and toxic shock syndrome toxin-1 superantigens: proliferation response, TCR V gamma profile and cytokines expression., Fikri, Y, Denis Olivier J., Pastoret P, and Nyabenda J , Immunol Lett, 2001 Jun 01, Volume 77, Issue 2, p.87-95, (2001)