@book{285742,
	author = {Kovar, Mary Grace., and National Center for Health Statistics (U.S.),},
	title = {Visits for medical and dental care during the year preceding childbirth :},
	publisher = {U.S. Department of Health, Education and Welfare, Public Health Service,},
	year = {1968.},
	series = {Vital and health statistics. Series 22, Data from the national vital statistics system ;},
	address = {Washington, D.C. :},
	note = {"Statistics on the volume and timing of visits to physicians and medical facilities and the frequency of visits to dentists during the year preceding childbirth by socioeconomic and demographic characteristics of the mother. Based on data collected by the National Natality Survey of births in 1963."},
	url = {https://purl.fdlp.gov/GPO/gpo106564}
}