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The Wellcome Trust.
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Richard Walker
Program for Appropriate Technology in Health
David Whiting
Medway School of Pharmacy
Nigel Unwin
University of Exeter
The Lancet Neurology
University College London
Imperial College London
Newcastle University
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Walker et al. (Wed,) studied this question.
synapsesocial.com/papers/69df2b8ed9e0feb21c591f63 — DOI: https://doi.org/10.1016/s1474-4422(10)70144-7