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Objective
To investigate factors associated with abnormal cell‐free DNA (cfDNA) results for sex chromosomes (SCs).
Study design
This is a retrospective cohort study of abnormal cfDNA results for SC at a referral practice from March 2013 to July 2015. Cell‐free DNA results were abnormal if they were positive for SC aneuploidy (SCA), inconclusive, or discordant with ultrasound (US) findings. Primary...
Objective
To describe the clinically relevant findings detected by the first trimester ultrasound (FTU) and to determine the additional value of the FTU compared to cell free DNA (cfDNA) alone.
Method
Retrospective cohort study of patients undergoing a FTU at a maternal–fetal medicine referral practice. Fetal, gynecologic, and placental findings detected by ultrasound were analyzed with available...
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