Clinical Trial Registration

http://www.pmrjournal.org/article/S1934-1482(15)01127-2/abstract?rss=yes
https://trialstracker.ebmdatalab.net/#/
http://authors.bmj.com/planning-your-research/trial-registration/

Retrospectively registered trials: the Editors’ dilemma


http://jamanetwork.com/journals/jama/fullarticle/10.1001/jama.2017.13001

 
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