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Fig. 1 | Trials

Fig. 1

From: Trends in clinical trial registration in sub-Saharan Africa between 2010 and 2020: a cross-sectional review of three clinical trial registries

Fig. 1

Flow chart describing data extraction by registry. The three registries had varying levels of flexibility during data extraction. With CTG, it was possible to apply filters directly for countries in SSA for the study period. PACTR and ISRCTN had limited flexibility, and components of the data which was not required are excluded as shown in the flow chart

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