Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleEfforts to help Africa are tripped up by red tape.AuthorsCampbell, Peter N.AbstractPresents a letter to the editor of "Nature," about the effect on the scientific community of a U.S. law restricting the provision of goods and services to people in countries embargoed by the country.SubjectsSCIENCE &; state; LETTERS to the editorPublicationNature, 2004, Vol 429, Issue 6990, p343ISSN0028-0836Publication typeLetterDOI10.1038/429343b