Dupraz, J., V. Graff, J. Barasche, J.-F. Etter, and M. Boulvain. “Tobacco and Alcohol During Pregnancy: Prevalence and Determinants in Geneva in 2008”. Swiss Medical Weekly, vol. 143, no. 2122, May 2013, p. w13795, doi:10.4414/smw.2013.13795.