1. Pain management for up to 9 weeks medical abortion: An international survey among abortion providers;Fiala;European Journal of Obstetrics and Gynecology and Reproductive Biology,2018
2. World Health Organization. Preventing Unsafe Abortion. Available from: www.who.int/news-room/fact-sheets/detail/preventing-unsafe-abortion (last updated February 18, 2018).
3. Fiala, C , et al. Early Medical Abortion. A Practical Guide for Health Care Professionals. 2nd Ed. 2018.
4. Modern methods to induce abortion: Safety, efficacy and choice;Nathalie;Best Practice and Research Clinical Obstetrics and Gynaecology,2020