title: Demonstration of Functional Heterogeneity of T lymphocytes and Identification of Their Two Major Subsets.
authors.affiliation: Ludwik Hirszfeld Institute of Immunology and Experimental Therapy , Wrocław , Poland.
authors.forename: Paweł
authors.initials: P
authors.lastname: Kisielow
keywords: CD4+8+ thymocytes; CD4+8− and CD4−8+ subsets; T lymphocytes; negative selection; positive selection