Nurse-midwifery: art and science.

The gap in the health of the nations' people seems to be widening and reflects existing social inequalities affecting the ongoing health of individuals. From a historical and practical perspective, certified nurse-midwives (CNMs) are one group of advanced practice registered nurses uniquely situated to address existing disparities related to maternal-child health. This article provides an overview of the historical development, current status, and use of CNMs in the United States health care system; the impact of CNMs on maternal-child health outcomes; and future trends in the education of CNMs.