title: Editorial overview: Lymphocyte development and activation: Lymphoid cell differentiation: choosing paths to traverse the immune landscape.
authors.affiliation: Department of Biomedical Research, National Jewish Health, Denver, CO, USA. Electronic address: hagmanj@njhealth.org.
authors.forename: James
authors.initials: J
authors.lastname: Hagman
mesh_terms: D000818:Animals; D002454:Cell Differentiation / Q000502:physiology; D006801:Humans; D008213:Lymphocyte Activation / Q000502:physiology*; D008214:Lymphocytes / Q000166:cytology* / Q000502:physiology*; D013234:Stem Cells / Q000166:cytology