Sanders, R C Ultrasound in the management of elective abortion. [electronic resource] - The American journal of roentgenology, radium therapy, and nuclear medicine Oct 1975 - 469-73 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0002-9580 Standard No.: 10.2214/ajr.125.2.469 doi Subjects--Topical Terms: Abortion, InducedAdolescentAdultFemaleGestational AgeHumansObstetric Labor Complications--diagnosisPalpationPregnancyPregnancy Complications--diagnosisPregnancy, MultipleUltrasonography