38% poniżej 2 roku życia bawi się urządzeniami mobilnymi [EN]
In two years, tablet and smartphone use among children under 2 has tripled. In 2011, 10% of children used mobile media, while 38% in 2013 have.
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In two years, tablet and smartphone use among children under 2 has tripled. In 2011, 10% of children used mobile media, while 38% in 2013 have.
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