%0 Journal Article %T Placebo-controlled trials and active-control trials in the evaluation of new treatments. Part 2: practical issues and specific cases. %A Ellenberg, S S %A Temple, R %J Annals of Internal Medicine %V 133 %N 6 %P 464-470 %@ 0003-4819 %D 2000-09-20 %~ DeepDyve