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The mean ± s.e.m. proportion of T lymphocytes expressing leucocyte adhesion molecules in lymph nodes and peripheral blood obtained from patients infected with HIV-1 (n = 5) and control subjects (n = 10). VLA-4, Very late antigen-4; ICAM-1, intercellular adhesion molecule-1; LFA-1, leucocyte function-associated antigen-1.
