PLoS medicine
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As participant-led health research increases, Effy Vayena and and John Tasioulas examine what ethical questions are raised, and what types of standards need to be developed for appropriate ethical oversight for participant-led research projects.
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Shingai Machingaidze and colleagues reflect on the successes and shortfalls of the Expanded Programme on Immunization (EPI) in Africa, and the considerable challenges that must now be addressed to improve immunization systems.