Title: Current research in chronic respiratory disease; proceedings.
Authors: United States.; Chronic Respiratory Diseases Control Program (U.S.)
Publisher: U.S. Chronic Respiratory Diseases Control Program; [for sale by the Supt. of Docs., U.S. Govt. Print. Off., Washington,
Year: 1969
Subjects: Pulmonary Emphysema; Lung; Bronchitis; Respiratory organs Diseases Congresses.