@book{145650,
	author = {National Center for Health Statistics U.S.},
	title = {Prevalence and characteristics of persons with hearing trouble, United States, 1990-91.},
	publisher = {Public Health Service, Centers for Disease Control and Prevention, National Center for Health Statistics},
	year = {1994.},
	series = {Vital and health statistics.},
	address = {Hyattsville, Md.},
	note = {"March 1994."}
}