TABLE 1.

D/S of graft flow waveforms in different models.

Model	D/S
lad-40%	Backflow
lad-50%	Backflow
lad-60%	3.26
lad-75%	1.66
lad-90%/g-patent	1.21
g-25%	1.33
g-50%	1.32
g-75%	1.19