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Fig. 1 | Trials

Fig. 1

From: Reporting of key methodological and ethical aspects of cluster trials in hemodialysis require improvement: a systematic review

Fig. 1

Flow diagram of study selection. **Other: One manuscript described the statistical plan for a main publication not related to cluster randomized trials, two described a program of research not related to the target population, and two were duplicate records not previously removed. Abbreviation: RCT, randomized controlled trial; CRT, cluster randomized trial

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