Randomized Clinical Trials--Am I My Brother's Keeper?
Journal of Clinical Gastroenterology. 1981; 3(Suppl. 2): 141-146.
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Lockshin, Michael D.; Katz, Patricia P.; Yelin, Edward H.; Mathieu, Sylvain; Boutron, Isabelle; Ravand, Philippe (2010-02-10)
Katz, Jeffrey N; Wright, John; Levy, Bruce A; Baron, John A; Losina, Elena (2011-03)To assess the impact of selective enrollment on the results of randomized controlled trials (RCTs).