The work of the United States Public health service.
Publisher: U.S. Govt. print. off.
Published: 1940
Place of publication: Washington
Language: eng
Number of pages: 82
Subjects: United States. Public Health Service.
Notes: "Revision of Reprint no. 1128." - Foot-note, p. 1.
Editions of 1931, 1934 and 1937 were issued as Reprint no. 1447 from the Public health reports.