swiss webster mice , 4-5 weeks of age , weighing 24-26 g with 4 x 10 ( 6 ) ascites sarcoma-180 cells when injected with 3 x 7.0 micronc of tritiated thymidine on day 5 of the tumor implant , show specific labeling on the plasma membrane surface .
C0007634
cells
C0007603
plasma membrane