The authors reported one study that found only 56 percent of 670 researchers surveyed in developing countries said their work had been reviewed by a local institutional review board or a health ministry.

CNN: Growth of clinical trial outsourcing raises issues

The study was supported by the German Ministry of Research, the French Programme Hospitalier de Recherche Clinique National and Medtronic, and many of the authors reported financial conflicts of interest with Medtronic and other companies.

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Indeed, the clone reported by the authors which contained a 24 base pair deletion in glycogag would be a classic example of a viral variant caused by the recombination of XMRV and an endogenous MLV virus.

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He and his co-authors reported in the New England Journal of Medicine that in November 2007, about one-third of clinical trials (157 of 509) were being carried out entirely outside the United States, many of them in developing countries.

CNN: Growth of clinical trial outsourcing raises issues

For example, just this week a study reported that in contrast to the widely held notion that bullying predicts depression, the authors found just the opposite: That depressive symptoms may make a child more likely to be singled out and picked on.

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