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http://www.who.int/dietphysicalactivity/publications/9789241599979/en/
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http://news.microsoft.com/2013/02/11/xbox-execs-talk-momentum-and-the-future-of-tv/
5. Microsoft’s Q2: Record $24.52 billion revenue and 3.9 million Xbox One sales.
http://www.theverge.com/2014/1/23/5338162/microsoft-q2-2014-financial-earnings