title: In Reply.
authors.affiliation: Department of Obstetrics & Gynaecology, University of British Columbia, Vancouver, British Columbia, Canada.
authors.forename: Gillian E
authors.initials: GE
authors.lastname: Hanley
authors.affiliation: Faculty of Pharmacy and Charles Perkins Centre, University of Sydney, Sydney, Australia.
authors.forename: Barbara
authors.initials: B
authors.lastname: Mintzes