Forsum Elisabet, Brantsæter Anne Lise, Olafsdottir Anna-Sigrid, Olsen Sjurdur F., and Thorsdottir Inga. “Weight Loss before Conception: A Systematic Literature Review”. Food & Nutrition Research00 (March 13, 2013). Accessed August 15, 2022. https://foodandnutritionresearch.net/index.php/fnr/article/view/545.