title: Reply.
authors.affiliation: Department of Obstetrics and Gynecology, Medical College of Wisconsin, Milwaukee, WI. Electronic address: anatlivs@gmail.com.
authors.forename: Anna
authors.initials: A
authors.lastname: Palatnik
authors.affiliation: Feinberg School of Medicine, Northwestern University, Chicago, IL.
authors.forename: William A
authors.initials: WA
authors.lastname: Grobman
authors.affiliation: Feinberg School of Medicine, Northwestern University, Chicago, IL.
authors.forename: Emily S
authors.initials: ES
authors.lastname: Miller