J Matern Fetal Neonatal Med 2019 Oct 21:1-7. Epub 2019 Oct 21.
Obstetrics and Gynecology Department, Helwan Faculty of Medicine, Helwan University, Helwan, Egypt.
J Matern Fetal Neonatal Med 2019 Aug 11:1-8. Epub 2019 Aug 11.
c Department of Obstetrics and Gynecology, Lasralainy Faculty of Medicine, Cairo University , Cairo , Egypt.