Maternal and neonatal outcomes by labor onset type and gestational age.
Bailit JL, Gregory KD, Reddy UM, Gonzalez-Quintero VH, Hibbard JU, Ramirez MM, Branch DW, Burkman R, Haberman S, Hatjis CG, Hoffman MK, Kominiarek M, Landy HJ, Learman LA, Troendle J, Van Veldhuisen P, Wilkins I, Sun L, Zhang J. Maternal and neonatal outcomes by labor onset type and gestational age. Am J Obstet Gynecol. 2010 Mar; 202(3):245.e1-245.e12.