Key points are not available for this paper at this time.
Carol Levine, Nancy Neveloff Dubler, Robert J. Levine, Building a New Consensus: Ethical Principles and Policies for Clinical Research on HIV / AIDS, IRB: Ethics & Human Research, Vol. 13, No. 1/2 (Jan. - Apr., 1991), pp. 1-17
Levine et al. (1991) studied this question.