doi:10.1017/S1368980009005254, Published online by Cambridge University Press 01 Apr 2009
Co-author names are correct as follows:
Kathryn Tripp should be Katherine Tripp
Zhara Mirghani should be Zahra Mirghani
The copyright line for this article should read:
© The Authors 2009. The contribution by Leisel Talley is a work of the US Government and is not subject to copyright protection in the United States.