OC17.03: Comparison of the effect of sildenafil and nitroglycerin on Doppler in pregnancies complicated by placental insufficiency and fetal growth restriction. (September 2014) - Trapani, A.; Trapani, T.; Silveira, S.K.; Franco, M.J.; Feurschuette, O.H.; Galuzzo, R.N.; Pires, M.S.