to determine whether all tumor s-phase cells incorporate [ 3h ] thymidine , we labeled the cells in three mouse tumors ( mca-11 , colon-26 , and colon-51 ) in vivo for 1/2 h with [ 3h ] thymidine ( 10 microci/g of body weight ) .
C0080129
s-phase
C0007634
the cells