these data indicate either that verapamil did not substantially enhance dnr uptake or retention in blast cells obtained from anll patients who are clinically resistant to dnr , or that the frequency of dnr-resistant cells ( ie , verapamil-responsive cells ) among the blast cells obtained from these patients was too low to influence the population mean of intracellular dnr as measured in these studies .
C0023467
anll
C0011015
dnr