A number of ethically questionable research practices brought to light recently in the United States have led to calls for tighter control of human experimentation. Colin Norman discusses some of the regulations which have been proposed and their effect on research.
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Norman, C. Guinea-pig charters. Nature 251, 2–3 (1974). https://doi.org/10.1038/251002a0
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DOI: https://doi.org/10.1038/251002a0