Is Informed Consent Always Needed?
Lancet. 1982 Dec 4; 2(8310): 1280.
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What Should We Say to Patients With Symptoms Unexplained by Disease? The "Number Needed to Offend" Stone, Jon; Wojcik, Wojtek; Durrance, Daniel; Carson, Alan; Lewis, Steff; MacKenzie, Lesley; Warlow, Charles P.; Sharpe, Michael (2002-12-21)
Bias From Requiring Explicit Consent From All Participants in Observational Research: Prospective, Population Based Study Al-Shahi, Rustam; Vousden, Celine; Warlow, Charles (2005-10-22)OBJECTIVE: To evaluate the differences between adults who consent to participate in observational research, and those who do not. DESIGN: Prospective, population based cohort study. SETTING: Primary and secondary care ...