1997
New technologies permit safe abortion at less than six weeks' gestation and provide timely detection of ectopic gestation
Edwards J, Carson S. New technologies permit safe abortion at less than six weeks' gestation and provide timely detection of ectopic gestation. American Journal Of Obstetrics And Gynecology 1997, 176: 1101-1106. PMID: 9166176, DOI: 10.1016/s0002-9378(97)70410-1.Peer-Reviewed Original ResearchConceptsWeeks' gestationEctopic pregnancyBeta-human chorionic gonadotropin measurementsElective abortionBeta-human chorionic gonadotropinPostoperative serum levelsEctopic gestationSerious complicationsSerum levelsTransvaginal ultrasonographyGestational sacVaginal ultrasonographyClose surveillanceGonadotropin measurementsUltrasonographic criteriaChorionic gonadotropinGestationPregnancyGreater riskComplete evacuationEarly abortionChorionic membraneSafe abortionAbortion procedureAbortion
1993
Predicting pregnancy survival from a single first trimester vaginal ultrasonogram
Burwinkel T, Emerson D, Buster J, Felker R, Altieri L, Carson S. Predicting pregnancy survival from a single first trimester vaginal ultrasonogram. Journal Of Ultrasound In Medicine 1993, 12: 665-668. PMID: 8264019, DOI: 10.7863/jum.1993.12.11.665.Peer-Reviewed Original ResearchConceptsSuccessful pregnancy outcomePregnancy outcomesEarly first trimesterUltimate pregnancy outcomeTransvaginal ultrasonogramTransvaginal ultrasonographyWeeks' gestationFirst trimesterPregnancy survivalRetrospective studyCRL measurementsOutcomesGestationUltrasonogramFHRTrimesterPregnancyUltrasonography