1. Comparison of Labor and Delivery Care Provided by Certified Nurse-Midwives and Physicians: A Systematic Review, 1990 to 2008 Meg Johantgen, PhD, RN, Lily Fountain, MS, CNM, RN, George Zangaro, PhD, RN, Robin Newhouse, PhD, RN, NEA-BC, Julie Stanik- Hutt, PhD, ACNP, CCNS, FAAN, Kathleen White, PhD, RN, NEA-BC, FAAN Women's Health Issues Volume 22, Issue 1, Pages e73-e81 (January 2012) DOI: 10.1016/j.whi.2011.06.005 Copyright © 2012 Jacobs Institute of Women's Health Terms and Conditions Terms and Conditions

2. Figure 1 Women's Health Issues 2012 22, e73-e81DOI: (10.1016/j.whi.2011.06.005) Copyright © 2012 Jacobs Institute of Women's Health Terms and Conditions Terms and Conditions

3. Figure 2 Women's Health Issues 2012 22, e73-e81DOI: (10.1016/j.whi.2011.06.005) Copyright © 2012 Jacobs Institute of Women's Health Terms and Conditions Terms and Conditions