Costa, S D Advanced abdominal pregnancy. [electronic resource] - Obstetrical & gynecological survey Aug 1991 - 515-25 p. digital Publication Type: Historical Article; Journal Article; Review ISSN: 0029-7828 Standard No.: 10.1097/00006254-199108000-00003 doi Subjects--Topical Terms: Diagnostic ImagingFemaleHistory, 16th CenturyHistory, 19th CenturyHistory, 20th CenturyHistory, AncientHumansIncidencePregnancyPregnancy, Abdominal--diagnosis