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Strategies for Increasing Recruitment to Randomised Controlled Trials: Systematic Review
Caldwell PHY,
Hamilton S,
Tan A,
Craig JC
(2010)
Strategies for Increasing Recruitment to Randomised Controlled Trials: Systematic Review.
PLOS Medicine 7(11): e1000368.
https://doi.org/10.1371/journal.pmed.1000368