id	keyword
bam-13503	ultrasound
bam-13503	needle
bam-13503	jet
bam-13503	sign
bam-13503	doppler
bam-13503	procedures
bam-13503	power
bam-13503	tip
bam-13503	jet sign
bam-13503	injection
bam-13503	study
bam-13503	power doppler