Donnelly, Jennifer C and Cooley, Sharon and Walsh, Thomas and Geary, Michael and Sarkar, Rupak and Gillan, John and McMahon, Corina (2004) The prevalence of recreational drug use, smoking and alcohol consumption in a low-risk Irish primigravid population. American Journal of Obstetrics & Gynecology, 191, (6, Supp.), p. 124. https://doi.org/10.1016/j.ajog.2004.10.333.