Corrigendum to Intramuscular progesterone in women with twins and a prior singleton spontaneous preterm birth American Journal of Obstetrics & Gynecology MFM/ Volume 2 (2020)/100124
1 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, Philadelphia, PA (Ward, Boelig, Al-Kouatly, Berghella).
2 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Yale New Haven Hospital, New Haven, CT (Greenberg).
3 Sidney Kimmel Medical College of Thomas Jefferson University, Philadelphia, PA (Greenberg).
4 Division of Maternal-Fetal Medicine, Department of Obstetrics and Gynecology, Thomas Jefferson University Hospital, Philadelphia, PA (Ward, Boelig, Al-Kouatly, Berghella). Electronic address: vincenzo.berghella@jefferson.edu.