1. Divergent paths to drug regulation in the United States and the United Kingdom;Ceccoli;J Policy Hist,2002
2. National Institute for Health and Care Excellence, 2015. Diabetes in pregnancy: management from preconception to the postnatal period (NG3) [online]. Available: https://www.nice.org.uk/guidance/ng3 [Accessed 18 October 2017].
3. Treatment of nonpsychotic major depression during pregnancy: patient safety and challenges;Epstein;Drug Healthc Patient Saf,2014
4. UK Teratology Information Service, 2017. About us [online]. Available: http://www.uktis.org/html/about_us.html [Accessed 18 October 2017].
5. National Poisons Information service, 2017. Toxbase [online]. Available: https://www.toxbase.org/ [Accessed 18 October 2017].