Scientists warn of 'majority' of badly run medical...

More than half of medical research clinical trials analysed showed a high risk of bias. It was especially bad for drug and alcohol studies.

Related Keywords

Germany ,South Africa ,United Kingdom ,Spain ,British ,Doug Altman ,Mike Clarke ,Frances Shiely ,Shaun Treweek ,Stefania Pirosca , ,Cochrane Review ,British Medical Journal ,Retraction Watch ,