Researchers analyzed cellphone use in more than 2,700 U.S. counties between early January and early May to identify where the phones were used, including workplaces, homes, retail and grocery stores, parks and transit stations.
from WebMD Healthhttps://img.webmd.com/dtmcms/live/webmd/consumer_assets/site_images/article_thumbnails/other/child_using_cellphone_other/1800x1200_2_child_using_cellphone_other.jpg https://ift.tt/31P7z3W
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