Berman, W Effects of pharmacologic agents on umbilical blood flow in fetal lambs in utero. [electronic resource] - Biology of the neonate 1978 - 225-35 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0006-3126 Standard No.: 10.1159/000241078 doi Subjects--Topical Terms: Acetylcholine--pharmacologyAngiotensin II--pharmacologyAnimalsBlood Pressure--drug effectsBradykinin--pharmacologyCatecholamines--pharmacologyDrug Evaluation, PreclinicalFemaleFetal Heart--physiologyHeart Rate--drug effectsHistamine--pharmacologyModels, BiologicalPlacenta--blood supplyPregnancyProstaglandins--pharmacologySerotonin--pharmacologySheepTolazoline--pharmacologyUmbilical Cord--blood supplyVascular Resistance--drug effects