<http://schema.org/image>
<http://rack.0.mshcdn.com/media/ZgkyMDE0LzA3LzI1LzRlL0dvb2dsZV9IZWFsLmVmNTQ5LmpwZwpwCXRodW1iCTEyMDB4NjI3IwplCWpwZw/21f25482/862/Google_Health.jpg>
<http://mashable.com/2014/07/25/google-baseline/>