AlHajri, L., M. AlFalasi, M. Abdelrahim, and R. AlKaabi. “The Efficacy of Ginger for Pregnancy-Induced Nausea and Vomiting: A Systematic Review”. Journal of Natural Remedies, vol. 17, no. 2, Nov. 2017, pp. 48-56, doi:10.18311/jnr/2017/18012.