@article {Richardson231969, author = {Tom G. Richardson and George Davey Smith and Marcus R. Munaf{\`o}}, title = {Conditioning on a collider may induce spurious associations: Do the results of Gale et al. (2017) support a protective effect of neuroticism in population sub-groups?}, elocation-id = {231969}, year = {2017}, doi = {10.1101/231969}, publisher = {Cold Spring Harbor Laboratory}, URL = {https://www.biorxiv.org/content/early/2017/12/11/231969}, eprint = {https://www.biorxiv.org/content/early/2017/12/11/231969.full.pdf}, journal = {bioRxiv} }