<http://schema.org/thumbnailUrl>
<http://www.metrowestdailynews.com/apps/pbcsi.dll/bilde?Site=WL&amp;Date=20121108&amp;Category=NEWS&amp;ArtNo=311089876&amp;Ref=AR>
<http://www.metrowestdailynews.com/x255967442/Dr-Murray-Feingold-Are-too-many-medical-articles-being-retracted>