<https://s4be.cochrane.org/blog/2015/05/19/using-health-evidence-best-available-evidence/#primaryimage>
<http://schema.org/contentUrl>
<https://static.s4be.cochrane.org/app/uploads/2015/04/mcmaster-evidence.jpg>
<https://s4be.cochrane.org/blog/2015/05/19/using-health-evidence-best-available-evidence/>