By randomizing patients, almost all factors (known or unknown) that might influence the outcome are present in equal proportions in the various treatment groups.

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Among the British public she aroused fervent admiration and intense dislike in almost equal proportions, but in the world beyond she was recognized for what she was: a great, creative stateswoman who left the world a better and more prosperous place, and whose influence will reverberate well into the 21st century.

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But the court has established a track record of impartiality, ruling in favour of the three major parties in almost equal proportions over the past decade.

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