About the Authors
Department of Obstetrics and Gynecology, University of Texas Medical Branch at Galveston, Galveston, Texas
Warwick Medical School, University of Warwick, Coventry, United Kingdom
The authors have declared that no competing interests exist.
RB, GDVH, GRS, GDA, and ST designed the study. RB analyzed the data. RB, GDVH, GRS, GDA, and ST enrolled patients. RB, GDVH, GRS, GDA and ST contributed to writing the paper.