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2. A randomized controlled study of reviewer bias against an inconventional therapy;KI Resch;Journal of the Royal Society of Medicine,2000
3. Publication bias, with a focus on psychiatry: causes and solutions;EH Turner;CNS drugs,2013
4. Non-publication of large randomized clinical trials: cross sectional analysis;CW Jones;Bmj,2013
5. Publication bias in clinical trials due to statistical significance or direction of trial results;S Hopewell;The Cochrane database of systematic reviews,2009