@book{8540,
	author = {Aspen Emphysema Conference and United States},
	title = {Current research in chronic respiratory disease},
	publisher = {U.S. Chronic Respiratory Diseases Control Program},
	year = {1969]},
	series = {Public Health Service publication},
	address = {Arlington, Va.},
	note = {Planned and organized by the Chronic Respiratory Diseases Control Program.}
}