1. Induction of labor;American College of Obstetricians and Gynecologists;International Journal of Gynecology and Obstetrics,1996
2. American College of Obstetricians and Gynecologists. (2005). Cesarean birth. http://www.acog.org/publications/patient_education/bp006.cfm. Accessed June 2009.
3. American College of Obstetricians and Gynecologists. (2009). Labor induction. http://www.acog.org/publications/patient_education/bp154.cfm. Accessed June 2009.
4. The persistence of early childhood maturity: international evidence of long-run age effects;Bedard;Quarterly Journal of Economics,2006
5. Berlinski, S., Galiani, S., & McEwan, P. J. (forthcoming) Preschool and maternal labor supply: Evidence from a regression discontinuity design. Economic Development and Cultural Change.