Patients with high OTR ( defined by VerifyNow ( Accumetrics , San Diego , Calif ) assay as @ P@Y@ reaction units -LSB- PRU -RSB- ) were randomly assigned in a @:@ ratio to group @ ( standard-dose clopidogrel therapy : @ mg/d for @ days ) or group @ ( high-dose clopidogrel : @ mg/d for @ days ) .