1. Post-term pregnancy: fetal considerations;Winn,1996
2. Post-term pregnancy;Resnik,1999
3. Induction of labor confers benefits in prolonged pregnancy;Grant;BJOG,1994
4. Risk of unexplained stillbirth at different gestational ages;Yudkin;Lancet,1987
5. Prospective risk of stillbirth;Feldman;Obstet Gynecol,1992