A transplant of stem cells from Blair Johanson, left, helps his twin brother, Bruce, fight cancer. Courtesy Bruce Johanson
https://www.cnn.com/2016/10/27/health/twin-dna-fights-cancer/index.html
A transplant of stem cells from Blair Johanson, left, helps his twin brother, Bruce, fight cancer. Courtesy Bruce Johanson
https://www.cnn.com/2016/10/27/health/twin-dna-fights-cancer/index.html