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 04.25.17 3:26PM ET / Published 03.09.09 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