Data extraction Data were extracted on study characteristics, drug regimen, sample size, compliance, mean baseline rating on depression scales, and percentage change at end point. Treatment effects were calculated and weighted in a meta-analysis. 3 different weights were used for each treatment effect to reflect 3 different assumptions about the correlation between baseline and follow up depres...

Multicentre randomised trial comparing high and low dose surfactant regimens for the treatment of respiratory distress syndrome (the Curosurf 4 trial) Halliday HL, Tarnow-Mordi WO, Corcoran JD, Patterson CC on behalf of the European Collaborative Multicentre Study Group, 1993............................................................................................................................