About the Author
- Gordon C. S. Smith
- Department of Obstetrics and Gynaecology, Cambridge University, Cambridge, United Kingdom
GS is a member of the PLoS Medicine Editorial Board.
Wrote the first draft of the manuscript: GS. Contributed to the writing of the manuscript: GS. ICMJE criteria for authorship read and met: GS. Agree with manuscript results and conclusions: GS.