not_abstract.txt

trial registration

trial was registered
trial is registered

trials registry
trials register
trial registry
trial register
trial number

cochrane

systematic review registration

international registered report identifier

http://clinicaltrials.gov
https://clinicaltrials.gov
www.clinicaltrials.gov
www.crd.york.ac.uk
www.isrctn.com
www.anzctr.org.au
www.trialregister.nl
www.drks.de
www.clinicaltrialsregister.eu
www.umin.ac.jp
www.chictr.org.cn
www.ctri.nic.in