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435. The new age of health laboratories, 1885-1915: an exhibit, May-October 1987 marking the centennial of the founding of the Pasteur Institute of Paris and the National Institutes of Health

449. National Library of Medicine classification: a scheme for the shelf arrangement of books in the field of medicine and its related sciences

466. National Library of Medicine classification: a scheme for the shelf arrangement of library materials in the field of medicine and its related sciences