Online Retrieval of Environmentaland Occupational Health Literature:A Comparative Study.

A formal study was attempted to assess the utility of the various online database sources for obtaining material in the fields of occupational and environmental health. Five databases were studied comparatively: BIOSIS, ENVIROLINE, EXCERPTA MEDICA, MEDLINE, and TOXLINE. In addition to crossdatabase searching to draw comparisons, a study of the journal coverage of four of these databases was completed. The goal of this effort was to establish some "databases of choice" for searching the literature.