[Kinetics of division of human and rabbit lymphocytes stimulated by phytohemagglutinin, studied by means of the bromodeoxyuridine (BUDR) technic].

The BUDR-Giemsa technique has been used to distinguish the first from later divisions for man and rabbit lymphocytes stimulated by treatment with phytohemagglutinin. At 48 hours, 99% of human lymphocytes exposed to 200 rads of X-rays are in first division whereas 45% of the rabbit lymphocytes are already in second division and 28% in third division.