In volume 88, Number 4, April 2010, p. 281, the order of authors and affiliations should have read:
David Bishai,a Yung-Ting Bonnenfant,a Manal Darwish,b Taghreed Adam,c Heli Bathija,c Elise Johansenc & Dale Huntingtonc for the FGM Cost Study Group of the World Health Organization
a Johns Hopkins Bloomberg School of Public Health, 615 N Wolfe Street, Baltimore, MD, 21205, United States of America.
b Assiut University, Assiut, Egypt.
c World Health Organization, Geneva, Switzerland.
