Departments: Letters to the EditorMifepristone Antagonization With Progesterone to Prevent Medical Abortion: A Randomized Controlled TrialDelgado, George MD; Davenport, Mary MD; Harrison, Matthew MDAuthor Information Steno Institute, Escondido, California Steno Institute, El Sobrante, California Steno Institute, Mount Pleasant, North Carolina Financial Disclosure George Delgado and Matthew Harrison are unpaid medical advisors to the Abortion Pill Rescue Network. The other author did not report any potential conflicts of interest. Obstetrics & Gynecology: April 2020 - Volume 135 - Issue 4 - p 969-970 doi: 10.1097/AOG.0000000000003780 Buy Corresponding Article Metrics Corresponding Article In Reply Creinin, Mitchell D.; Hou, Melody Y.; Dalton, Laura; Steward, Rachel; Chen, Melissa J. Obstetrics & Gynecology. 135(4):970-971, April 2020. © 2020 by the American College of Obstetricians and Gynecologists. Published by Wolters Kluwer Health, Inc. All rights reserved.