Csajka, C., A. Jaquet, U. Winterfeld, M. Yvonne, A. Einarson, and A. Panchaud. “Risk Perception by Healthcare Professionals Related to Drug Use During Pregnancy: A Swiss Survey”. Swiss Medical Weekly, vol. 144, no. 0910, Feb. 2014, p. w13936, doi:10.4414/smw.2014.13936.