\input zb-basic
\input zb-ioport
\iteman{io-port 70762010}
\itemau{Shpitser, Ilya; Vanderweele, Tyler J.; Robins, James M.}
\itemti{On the validity of covariate adjustment for estimating causal effects}
\itemso{UAI, 527-536 (2010).}
\itemcc{}
\itemut{}
\itemli{http://uai.sis.pitt.edu/displayArticleDetails.jsp?mmnu=1&smnu=2&article\_id=2078&proceeding\_id=26}
\end