1. Drug use in pregnancy: an overview of epidemiological (drug utilization) studies;Bonati;Eur J Clin Pharmacol,1990
2. Organization for Economic Co-operation and Development. Members and partners 2010 //www.oecd.org/pages/0,3417,en_36734052_36761800_1_1_1_1_1,00.html
3. Prescription drug use in pregnancy;Andrade;Am J Obstet Gynecol,2004
4. Drug prescription patterns before, during and after pregnancy for chronic, occasional and pregnancy-related drugs in the Netherlands;Bakker;BJOG,2006
5. Prescription drug use among fathers and mothers before and during pregnancy: a population-based cohort study of 106,000 pregnancies in Norway 2004-2006;Engeland;Br J Clin Pharmacol,2008