Changes in fetal and maternal doppler parameters observed during acute severe hypertension treatment with hydralazine or labetalol: a randomized controlled trial - Baggio, Maria Rita F.; Martins, Wellington de Paula; Calderon, Ana Carolina dos Santos; Berezowski, Aderson Tadeu; Marcolin, Alessandra Cristina; Duarte, Geraldo; Cavalli, Ricardo de Carvalho (Ultrasound in Medicine Biology, 2011)