Databases that contain materials specifically relevant to the reduction, refinement, and replacement of animals in laboratory research and teaching will be of particular utility to your literature search. These databases have been created and are maintained by a variety of groups, including the U.S. government, universities in the U.S. and abroad, and private research institutes. You will find that these databases will cover a broader range of publication formats than commercial databases, including videotapes and software packages in addition to peer-reviewed articles.