Evaluation of a method to indirectly adjust for unmeasured covariates in the association between fine particulate matter and mortality.
Erickson AC, Brauer M, Christidis T, Pinault L, Crouse DL, van Donkelaar A, Weichenthal S, Pappin A, Tjepkema M, Martin RV, Brook JR, Hystad P, Burnett RT.
