<http://schema.org/url>
<http://uk.reuters.com/article/2012/12/17/us-thimerosal-vaccines-pediatricians-idUKBRE8BG05C20121217>
<http://uk.reuters.com/article/2012/12/17/us-thimerosal-vaccines-pediatricians-idUKBRE8BG05C20121217>