changes in vft for all groups were , over time , negatively correlated with % i iso and were not dependent on membrane stabilizing effect ( metoprolol , propranolol ( d , dl ) , pindolol ) , intrinsic sympathomimetic activity ( pindolol ) , or cardioselectivity ( metoprolol , atenolol ) .
C0042510
vft
C0004147
atenolol