Rasanen, J Reactivity of the human fetal pulmonary circulation to maternal hyperoxygenation increases during the second half of pregnancy: a randomized study. [electronic resource] - Circulation Jan 1998 - 257-62 p. digital Publication Type: Clinical Trial; Journal Article; Randomized Controlled Trial ISSN: 0009-7322 Standard No.: 10.1161/01.cir.97.3.257 doi Subjects--Topical Terms: Blood Flow Velocity--drug effectsBlood Pressure--drug effectsBlood Volume--drug effectsCardiac Output--drug effectsFemaleFetus--blood supplyGestational AgeHeart Rate, Fetal--drug effectsHumansMaternal-Fetal Exchange--drug effectsOxygen--pharmacologyPregnancyPregnancy Trimester, Second--drug effectsPregnancy Trimester, Third--drug effectsPulmonary Artery--drug effectsPulmonary Circulation--drug effectsPulsatile Flow