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rewrite this sentence: The study is designed as a double-blind, multicenter, placebo-controlled trial to assure the data wasn't skewed by people knowing what was going

rewrite this sentence: The study is designed as a double-blind, multicenter, placebo-controlled trial to assure the data wasn't skewed by people knowing what was going on and there was plenty of locations contributing medical charts giving as much good data as would fit into one study

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