@book{154369,
	author = {National Center for Health Statistics U.S.},
	title = {Prenatal care in the United States, 1980-94.},
	publisher = {U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics},
	year = {1996.},
	series = {Vital and health statistics.},
	address = {Hyattsville, Md.},
	note = {"July 1996."}
}