Stopping clinical trials early for futility: retrospective analysis of several randomised clinical studies.

Autor: Jitlal, M1, Khan, I1, Lee, S M2, Hackshaw, A1
Zdroj: British Journal of Cancer. 9/4/2012, Vol. 107 Issue 6, p910-917. 8p. 6 Charts.
Databáze: Academic Search Ultimate