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Claims of ‘no difference’ or ‘no effect’ in Cochrane and other systematic reviews
- Correspondence to Phoebe Rose Marson Smith, Science Policy Research Unit, University of Sussex, Brighton BN1 9RH, UK; phoebemarsonsmith{at}gmail.com
Citation
Claims of ‘no difference’ or ‘no effect’ in Cochrane and other systematic reviews
Publication history
- Accepted December 17, 2019
- First published January 7, 2020.
Online issue publication
May 21, 2021
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© Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. http://creativecommons.org/licenses/by-nc/4.0/This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.