<http://schema.org/url>
<http://img-3.newatlas.com/stem-cell-retina.jpg?auto=format%2Ccompress&amp;ch=Width%2CDPR&amp;crop=entropy&amp;fit=crop&amp;h=347&amp;q=60&amp;w=616&amp;s=9b8db5870c4fc02d3ea87d8b9a5bdcd5>
<http://newatlas.com/retina-created-from-human-stem-cells/15243/>