Piwko, C., G. Koren, V. Babashov, C. Vicente, and T. R. Einarson. “ECONOMIC BURDEN OF NAUSEA AND VOMITING OF PREGNANCY IN THE USA”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 20, no. 2, Nov. 2018, https://jptcp.com/index.php/jptcp/article/view/384.