@incollection{Lucas12, author = {Raquel Lucas}, title = {Frameworks for Causal Inference in Epidemiology}, booktitle = {Epidemiology}, publisher = {IntechOpen}, address = {Rijeka}, year = {2012}, editor = {Nuno Lunet}, chapter = {2}, doi = {10.5772/34208}, url = {https://doi.org/10.5772/34208} }