Citation: Ma. Hernan et al., Marginal structural models to estimate the joint causal effect of nonrandomized treatments, J AM STAT A, 96(454), 2001, pp. 440-448
Citation: Ma. Hernan et al., Marginal structural models to estimate the causal effect of zidovudine on the survival of HIV-positive men, EPIDEMIOLOG, 11(5), 2000, pp. 561-570