Clifton, V L Alterations of placental vascular function in asthmatic pregnancies. [electronic resource] - American journal of respiratory and critical care medicine Aug 2001 - 546-53 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1073-449X Standard No.: 10.1164/ajrccm.164.4.2009119 doi Subjects--Topical Terms: AdultAnalysis of VarianceAnti-Inflammatory Agents--adverse effectsAsthma--classificationBlood Flow VelocityCase-Control StudiesFemaleFetal Growth Retardation--etiologyForced Expiratory VolumeHumansPeak Expiratory Flow RatePlacenta--blood supplyPlacental Insufficiency--diagnostic imagingPregnancyPregnancy Complications--classificationPregnancy Trimester, SecondPregnancy Trimester, ThirdProspective StudiesSeverity of Illness IndexSteroidsUltrasonography, DopplerUltrasonography, PrenatalUmbilical Arteries--physiopathology