an excellent linear correlation between the ratio of squared diameters of pt and ao orifices ( pt2/ao2 ) and qp/qs was found in patients with asd ( r = 0.80 , p less than 0.001 ) , good in vsd group ( r = 0.57 , p less than 0.001 ) , weak in tf ( r = 0.36 , p less than 0.028 ) and no correlation in the pda group .
C0028128
no
C0013274
pda