dr. annick desjardins. typical, the university has licensed this technology to a new company to attract research dollars to the therapy and all the members of the team are investors. >> dr. henry friedman: good to see that this is going well. >> pelley: dr. friedman screens more than 1,000 glioblastoma patients a year who would like to be treated at duke. he helps decide who meets the criteria for the polio trial. i wonder of all the trials and all of the theories and all of the treatments that you have hoped for all of these years, how does this stack up? >> friedman: this, to me, is the most promising therapy i've seen in my career, period. >> pelley: the virus is the creation of, the obsession of doctor gromeier, who has been laboring over this for more than 25 years, the last 15 at duke. when you went to your colleagues and said, "i've got it. we'll use the polio virus to kill cancer." what did they say? >> dr. matthias gromeier: well, i got a range of responses from, from crazy to you're lying, to all k