dr. kurtzberg to listen to ecklund's theories >> yes. i have seen them be effective in cases of cerebral palsy. >> this is pretty scary, actually, that he would be saying these things, that he would be leading them on this way, because what he's talking about is very dangerous. >> is this a con, dr. ecklund? >> no, it's not a con. i have taken the stem cells myself. would i take the stem cells if i thought that they were a con? no. >> putting them in an 11-year-old boy is entirely a different matter. >> that's why i took care to explain the remotest possible difficulties, which have never been reported. >> without any medical studies that have been published in major journals... >> [laughs] >> that have suggested that stem cells have any efficacy in cerebral palsy-- >> you keep going back to this point, that they're not published in major ethic-- in major medical journals. i'm telling you-- >> it is the standard of the world. i do keep going to that point. >> i'm telling you that they are not going to be published in this country, becaus