Late Abdominal Pregnancies (=20 Weeks Gestation): A Review from 1965 to 2012.
Hymel JA, Hughes DS, Gehlot A, Ramseyer AM, Magann EF. Late Abdominal Pregnancies (=20 Weeks Gestation): A Review from 1965 to 2012. Gynecol Obstet Invest. 2015; 80(4):253-8.