Yuri Levada , a sociologist and pollster whose surveys provided some of the most reliable information about public opinion in the Soviet Union and then Russia , died at his office in Moscow on Thursday .
Russia
Moscow
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Russia
Moscow
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Yuri Levada
Soviet Union
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Moscow
Russia
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Soviet Union
Moscow
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Russia
Moscow
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PERSON
Yuri Levada
LOCATION
Soviet Union
LOCATION
Russia
LOCATION
Moscow