Brentlinger Paula E, Sherr Kenneth, Mercer Mary Anne, Gloyd Stephen
International Health Program, Department of Health Services, School of Public Health and Community Medicine, University of Washington, Seattle, Washington, USA.
Lancet Infect Dis. 2003 Aug;3(8):467; discussion 467-8. doi: 10.1016/s1473-3099(03)00718-7.