Human subjects research : radiation experimentation : hearing before the Committee on Labor and Human Resources, United States Senate, One Hundred Third Congress, first session, on determining the magnitude of the radiation research, to determine where these experiments took place, to determine what records exist, to determine how great the dangers were, to determine if participants were informed of the risks and benefits of the radiation experiments and to determine how much harm was done, January 13, 1994, Waltham, MA.