http://www.thehockeynews.com/blog/gordie-howe-comfortable-and-happy-after-second-stem-cell-treatment/
http://www.cbssports.com/nhl/eye-on-hockey/24903245/gordie-howes-condition-improving-following-stem-cell-treatment
http://www.technologyreview.com/biomedicine/21930/?nlid=1627
http://www.technologyreview.com/Biotech/21377/?nlid=1344&a=f
http://www.inthenews.co.uk/news/health/science/stem-cell-transplants-may-benefit-stroke-victims-$1193727.htm