Previous Article Next Article Table of Contents Science, Vol.275, No.5306, 1615-1615, 1997 DOI10.1126/science.275.5306.1615 Export Citation Nota Bene - Immunology - Tagging T-Cells - T(H)1 or T(H)2 Gallagher R Keywords:IL-12 Please enable JavaScript to view the comments powered by Disqus.