More sources

http://googleblog.blogspot.com/2011/06/update-on-google-health-and-google.html

http://thehealthcareblog.com/blog/2014/07/08/google-co-founders-thanks-but-no-thanks/

http://googleblog.blogspot.com/2010/09/google-health-update.html

http://chealthblog.connectedhealth.org

http://thehealthcareblog.com/blog/tag/google-health/

http://commonhealth.wbur.org/2011/07/killed-google-health/

http://www.dignityhealth.org/Video/GLASS

http://www.bbc.com/news/technology-29802581

http://www.naturalnews.com/023275_Google_Health.html