Guidelines Proposed for Stem Cell Research

A report released this week by the National Academies offers guidelines for scientists doing research with human embryonic stem cells. The report's authors say the rules are needed because federal regulations specifically designed for this type of research, which is not broadly supported with federal funds, are lacking. Guests:

Richard Hynes, co-chair, National Academies Committee on Guidelines for Human Embryonic Stem Cell Research; investigator, Howard Hughes Medical Institute; Daniel K. Ludwig professor of cancer research, Center for Cancer Research, Massachusetts Institute of Technology

Irving Weissman, M.D., director, Institute for Cancer and Stem Cell Biology and Medicine; Karel and Avice Beekhuis professor of cancer biology, Stanford University School of Medicine

Diana DeGette, representative, Colorado, First District Democratic chief deputy whip



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