title: The critical need for CD4 help in maintaining effective cytotoxic T lymphocyte responses.
authors.affiliation: Partners AIDS Research Center and Infectious Disease Division, Massachusetts General Hospital and Harvard Medical School, Charlestown, Massachusetts 02129, USA.kalams@helix.mgh.harvard.edu
authors.forename: S A
authors.initials: SA
authors.lastname: Kalams
authors.forename: B D
authors.initials: BD
authors.lastname: Walker
mesh_terms: D000818:Animals; D001117:Arenaviridae Infections / Q000276:immunology; D017635:Clonal Anergy / Q000276:immunology; D015658:HIV Infections / Q000276:immunology / Q000628:therapy / Q000821:virology; D006801:Humans; D008211:Lymphocyte Cooperation; D008217:Lymphocytic choriomeningitis virus; D013602:T-Lymphocytes, Cytotoxic / Q000276:immunology*; D006377:T-Lymphocytes, Helper-Inducer / Q000276:immunology*; D014777:Virus Diseases / Q000276:immunology*