Gupta: Stem Cell Research Holds 'Promise'

Dr. Sanjay Gupta says he is optimistic about the potential benefits of stem cell research, but points out that 'it's gonna take time.' Source: CNN

Updated Apr. 25, 2017 3:26PM ET / Published Mar. 09, 2009 4:35PM ET

Dr. Sanjay Gupta says he is optimistic about the potential benefits of stem cell research, but points out that 'it's gonna take time.' Source: CNN