title: Cell-cycle control in lymphocyte stimulation.
abstract: Discussion of lymphocyte mitogenesis often gives the impression that the process, once started, continues inexorably. It does not. Here Gerry Klaus and Catherine Hawrylowicz discuss the arrest points now known to occur in the division cycle of T and B lymphocytes and the signals required for progression through the cycle.
authors.affiliation: Division of Immunology, National Institute for Medical Research, Mill Hill, London NW7 1AA, UK.
authors.forename: G G
authors.initials: GG
authors.lastname: Klaus
authors.forename: C M
authors.initials: CM
authors.lastname: Hawrylowicz