NGOs which are treating people with AIDS and working to improve access to medicines say patents block affordable, easier-to-take medicines from reaching people who need them. This is in sharp contrast to a 17 October communication co-authored by Amir Attaran of the Harvard Center for International Development and Lee Gillespie-White of the International Intellectual Property Institute, "Do Patents for Antiretroviral Drugs Constrain Access to AIDS Treatment in Africa". The publication claims that "patents in Africa have generally not been a factor in either pharmaceutical economics and antiretroviral drug treatment access." The findings of this paper have been extensively used by industry to back their claim that patents are not an issue. The pharmaceutical company Merck has also funded one of the authors.