The publication is the fourth in a series intended to be a useful current-awareness tool for scientists but does not represent a verification of an author's recommended use of a particular species as a model, or as the best model, for a specific biologic process. The publication serves as a vehicle through which current research utilizing animal models can be compiled and disseminated periodically for evaluation. All entries are either authors' abstracts or their summaries and conclusions. Selected Abstracts on Animal Models for Biomedical Research is a publication of the Animal Models and Genetic Stocks Program, an information-exchange service conducted by ILAR. The program informs the biomedical community of the various animal models available and assists investigators in selecting and locating particular strains or stocks.