Double-adjustment in propensity score matching analysis: choosing a threshold for considering residual imbalance od Nguyen, T, Collins, G, Spence, J, Daurès, J, Devereaux, P, Landais, P, Le Manach, Y

Simple randomization did not protect against bias in smaller trials od Nguyen, T, Collins, G, Lamy, A, Devereaux, P, Daurès, J, Landais, P, Le Manach, Y

Magnitude and direction of missing confounders had different consequences on treatment effect estimation in propensity score analysis od Nguyen, T, Collins, G, Spence, J, Fontaine, C, Daurès, J, Devereaux, P, Landais, P, Le Manach, Y