We have heard in the afternoon pre-sentations about challenges in achieving an unbiased and valid randomization in the context of group- or cluster-randomized trials, the special challenges in conducting a… Click to show full abstract
We have heard in the afternoon pre-sentations about challenges in achieving an unbiased and valid randomization in the context of group- or cluster-randomized trials, the special challenges in conducting a group- or cluster-randomized trial for vaccine efficacy, and the common challenges in implementing group- or cluster-randomized trials in the real world.
               
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