@book{145651,
	author = {Collins, John Gary. and National Center for Health Statistics U.S.},
	title = {Prevalence of selected chronic conditions},
	publisher = {U.S. Dept. of Health and Human Services, Public Health Service, Centers for Disease Control, National Center for Health Statistics},
	year = {[1993-]},
	series = {Vital and health statistics.},
	address = {Hyattsville, Md.},
	note = {"February 1993."}
}