title: A suggested expansion of the NLM classification scheme for dentistry.
abstract: The National Library of Medicine Classification is excellent for the shelf arrangement of books in a medical library. However, it is too general for a very specialized dental collection such as ours at Northwestern University Dental School Library. We suggest an expansion of the WU category based on the pattern followed in other areas of the NLM classification. An index for the expanded scheme is included.
mesh_terms: D002965:Classification; D003813:Dentistry; D007991:Libraries, Dental; D009317:National Library of Medicine (U.S.); D014481:United States