1. Births: preliminary data for 2005;Hamilton;Natl Vital Stat Rep,2006
2. NIH state-of-the-science conference statement on cesarean delivery on maternal request;Anonymous;NIH Consens State Sci Statements,2006
3. A national estimate of the elective primary cesarean delivery rate;Meikle;Obstet Gynecol,2005
4. Patient choice cesarean: an evidence-based review;Wax;Obstet Gynecol Surv,2004
5. Principles of biomedical ethics;Beauchamp,2001