American Journal of Obstetrics and GynecologyVolume 213, Issue 3, September 2015, Page e1Mixed mediaMothers’ bloodAuthor links open overlay panelBenji Perin BAShow moreShareCitehttps://doi.org/10.1016/j.ajog.2015.06.030Get rights and contentReferences (0)Cited by (0)The author reports no conflict of interest.View full textCopyright © 2015 Elsevier Inc. All rights reserved.