<http://schema.org/url>
<http://www.businessweek.com/articles/2014-05-28/to-end-polio-the-u-dot-s-dot-needs-to-do-more-than-get-spies-away-from-vaccines>
<http://www.bloomberg.com/bw/articles/2014-05-28/to-end-polio-the-u-dot-s-dot-needs-to-do-more-than-get-spies-away-from-vaccines%23r=rss>