An official website of the United States government
The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before
sharing sensitive information, make sure you’re on a federal
government site.
The site is secure.
The https:// ensures that you are connecting to the
official website and that any information you provide is encrypted
and transmitted securely.
Kullberg MC, Pearce EJ, Hieny SE, Sher A, Berzofsky JA.Kullberg MC, et al. Among authors: sher a.J Immunol. 1992 May 15;148(10):3264-70.J Immunol. 1992.PMID: 1533656
Sher A, Coffman RL, Hieny S, Scott P, Cheever AW.Sher A, et al.Proc Natl Acad Sci U S A. 1990 Jan;87(1):61-5. doi: 10.1073/pnas.87.1.61.Proc Natl Acad Sci U S A. 1990.PMID: 2104985Free PMC article.