Article info
PDFCommentary
Trial registration: must take place before or at the onset of enrolment
- Correspondence to Professor S Goodacre, Medical Care Research Unit, University of Sheffield, 23 Nairn Street, Sheffield S10 1UL, UK; s.goodacre{at}sheffield.ac.uk
Citation
Trial registration: must take place before or at the onset of enrolment
Publication history
- Received January 1, 2014
- Accepted January 5, 2014
- First published February 13, 2014.
Online issue publication
October 24, 2016
Request permissions
If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.
Copyright information
Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions