Key points are not available for this paper at this time.
Jeremy Sugarman, Douglas C. McCrory, Donald Powell, Alex Krasny, Betsy Adams, Eric Ball, Cynthia Cassell, Special Supplement: Empirical Research on Informed Consent: An Annotated Bibliography, The Hastings Center Report, Vol. 29, No. 1 (Jan. - Feb., 1999), pp. S1-S42
Sugarman et al. (Fri,) studied this question.