Persistent fetal occiput posterior position: obstetric outcomes

Obstetrics & Gynecology - Tập 101 - Trang 915-920 - 2003
Susan E. Ponkey1, Amy P. Cohen1, Linda J. Heffner1, Ellice Lieberman1
1Department of Obstetrics and Gynecology, Brigham and Women's Hospital Boston, Massachusetts USA