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<http://presstelegraph.com/2016/10/17/todays-price-action-petroleo-brasileiro-sa-petrobras-adr-on-focus-after-trading-at-52-week-highs/>
<http://presstelegraph.com/2016/10/17/todays-price-action-petroleo-brasileiro-sa-petrobras-adr-on-focus-after-trading-at-52-week-highs/>