Ekstrand , Maria, Tanja Tydén, Elisabeth Darj, and Margareta Larsson. “Twelve-Month Follow-up of Advance Provision of Emergency Contraception Among Teenage Girls in Sweden—a Randomized Controlled Trial”. Upsala Journal of Medical Sciences 118, no. 4 (October 9, 2020). Accessed April 2, 2026. https://ujms.net/index.php/ujms/article/view/5950.