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. 2010 Jun 29;4(6):e619. doi: 10.1371/journal.pntd.0000619

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Lang et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Classification of a random sample of 100 trials for each of five countries in Europe (France, Germany, Italy, Spain, and the United Kingdom) and Sub-Saharan Africa (Kenya, Mali, Tanzania, Uganda, and Zambia). Trials in Africa focus predominantly on paediatric populations (A) and infectious disease (B) and are non-industry sponsored (C). Data were abstracted from the ClinicalTrials.gov website in August 2009.