Maternal psychosocial determinants of fetal and infant health and the National Children's Study.

The purpose of this article is to inform perinatal nurses about the longitudinal National Children's Study (NCS), which was mandated by Congress. The NCS was designed to follow infants from before birth to age 21, and researchers propose to study 100,000 children. This complex and extensive study will provide especially relevant information to perinatal nurses in practice, teaching, and research.