1. Brain Research Institute; Psychoneuroimmunology Research Program; University of California; Los Angeles CA 90024 U.S.A.
2. Department of Psychiatry and Biobehavioral Sciences; University of California; Los Angeles CA 90024 U.S.A.
3. Department of Microbiology and Immunology; University of California; Los Angeles CA 90024 U.S.A.
4. Department of Anatomy and Cell Biology; University of California; Los Angeles CA 90024 U.S.A.
5. West Los Angeles VA Medical Center; Brentwood Division; Los Angeles CA 90073 U.S.A.
6. Brain Research Institute; Mental Retardation Research Center; University of California; Los Angeles CA 90024 U.S.A.