<http://schema.org/url>
<http://www.businessweek.com/articles/2013-09-04/edible-bar-codes-aim-to-swallow-the-counterfeit-drug-market>
<http://www.bloomberg.com/bw/articles/2013-09-04/edible-bar-codes-aim-to-swallow-the-counterfeit-drug-market>