1.   Such results contradict the conventional wisdom that treatment does not work.

2.   The results contradicted those of smaller studies that had raised hopes that a simple means of preventing diabetes was close at hand.

3.   United Water sent its own samples to two laboratories, he said, and the preliminary results have contradicted the state findings.

4.   Glaciers are barometers of climate change, and researchers said the survey results here contradict global warming trends.

5.   The election results also contradict the arguments of some Asian governments, including China, which defend their authoritarianism by portraying democracy as an alien Western concept.