[Bethesda, Md.?] : U.S. Dept. of Health and Human Services, National Institutes of Health, National Institute of Allergy and Infectious Diseases, [2007]
Title from title screen (viewed on Jan. 7, 2009). "NIAID science education." "September 2007."
Technical Details:
Mode of access: Internet from the NIAID web sites. Addresses as of 1/7/09: http://www3.niaid.nih.gov/topics/immuneSystem/PDF/theImmuneSystem.pdf; current access available via PURL.