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. 2016 Feb;70:17–25. doi: 10.1016/j.jclinepi.2015.07.002

Fig. 2.

Fig. 2

Considerations when reviewing requests for data as reported by 15 CTUs that had received a request in the past 12 months. *Total number of responses <15 as at least one CTU did not respond. CTUs, Clinical Trial Units.