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. 2013 Nov 14;3(11):e002957. doi: 10.1136/bmjopen-2013-002957

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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

This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 3.0) 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 and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/3.0/

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Trial site desirability by country. Trial site desirability ‘index’—nine country rank (N=296; ordered by median). Respondents were asked to provide their ‘personal perception’ ranking of the desirability of running trials in nine countries, ranking them from ‘1’ ‘most desirable’ country to ‘9’ ‘least desirable’ country (if needed, they could click ‘no opinion’ in up to three countries they know the least). Data are presented as whisker-box plot of median and lower and upper quartile. There was evidence of a statistically significant difference in the perceived desirability of running trials across European Union countries (p=0.0001).