From: Effect of L-arginine and sildenafil citrate on intrauterine growth restriction fetuses: a meta-analysis
Studies
SMD (95Â %CI)
P value
NO2/NO3 level in umbilical blood
3
0.66 [0.35,0.96]
<0.0001
NO2/NO3 level in maternal blood
0.70 [0.39,1.00]
Pulsatility indexes(PI) in umbilical artery
2
−1.98 [−3.65,−0.32]
0.02