growth of the ductal epithelium within the human breast transplants , as a function of the hormone treatment , was assessed by 3h-thymidine autoradiographic analysis , i.e. , the number of 3h-thymidine radiolabeled ductal cells per unit area of ductal epithelium ( labeling index [ li ] ) .
C1512086
ductal epithelium
C1512085
ductal cells