Glycyrrhiza glabra (Liquorice)

University of Edinburgh. “Eating Licorice In Pregnancy May Affect A Child’s IQ And Behavior.” ScienceDaily. October 2009.
Katri Räikkönen et al, Maternal Licorice Consumption and Detrimental Cognitive and Psychiatric Outcomes in Children, American Journal of Epidemiology, Volume 170, Issue 9, Nov 2009, Pages 1137–1146
Glycyrrhiza glabra, an overview, Science Direct (online resource)
De Klerk, Gerty J., et al. “Lesson of the Week: Hypokalaemia and Hypertension Associated with Use of Liquorice Flavoured Chewing Gum.” British Medical Journal, vol. 314, no. 7082, 1997, pp. 731–732
M. Attokaran, Natural Food Flavors and Colorants, Blackwell 2011, ISBN: 978-0-813-82110-8
M. R. Lee, Liquorice: The journey of the sweet root from Mesopotamia to England, Journal of the Royal College of Physicians Edinburgh2018; 48: 378-82
“Licorice the Versatile.” Scientific American, vol. 141, no. 3, 1929, pp. 208–210