Steps toward prevention of chronic disease; summary of the National Conference on Chronic Disease: - [Raleigh, N.C., Health Publications Institute, 1952] - 31 p. 26 cm. LCCN: 52009100 Subjects--Topical Terms: Medicine, Preventive--Congresses.Chronic diseases. LC Class. No.: RA422 / .N17 1951a Dewey Class. No.: 616.044 STE