title: A subject index for occupational medical literature.
abstract: A subject classification system for organizing files of occupational medical literature is described. In the hierarchical system, based on a textbook integrated index, each subject is assigned a numerical code and articles are coded for filing. Computerized management of the file is discussed.
mesh_terms: D000043:Abstracting and Indexing / Q000379:methods*; D009787:Occupational Medicine