Cloning, 2001Cloning, 2001, Website or Online DataHearing Before A Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Seventh Congress, First Session : Special Hearing, December 4, 2001, Washington, DC
Cloning, 2002Cloning, 2002, Website or Online DataHearings Before A Subcommittee of the Committee on Appropriations, United States Senate, One Hundred Seventh Congress, Second Session : Special Hearings, January 24, 2002, Washington, DC, March 12, 2002, Washington, DC
Adult Stem Cell ResearchAdult Stem Cell Research, Website or Online DataSuccesses From the Field : Hearing Before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Eighth Congress, Second Session, July 14, 2004
Human CloningHuman Cloning, Website or Online DataHearing Before the Subcommittee on Science, Technology, and Space of the Committee on Commerce, Science, and Transportation, United States Senate, One Hundred Seventh Congress, First Session, May 2, 2001