A 92-year-old woman with normal systolic function had recently begun using the newly approved phosphodiesterase III inhibitor cilostazol when she was admitted with lower-extremity pain. Cilostazol is
aAt the points of the first (June, 2010), second (July, 2010), twelfth (May, 2011) and fifteenth (August, 2011) months after intervention. bFor example, 0.5 tab twice daily changed to 1 tab once daily