Okonofua, F E Does standing up improve the predictive value of the supine pressor test for gestational hypertension? [electronic resource] - Obstetrics and gynecology Sep 1990 - 332-5 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0029-7844 Subjects--Topical Terms: AdolescentAdultBlood Pressure DeterminationFemaleHumansHypertension--diagnosisPosturePregnancyPregnancy Complications, Cardiovascular--diagnosisPregnancy Trimester, ThirdPrognosisProspective StudiesSupination