1. Diagnostics Division, Abbott Laboratories, North Chicago, IL 60064.
2. Desire Narcotics Rehabilitation Center, New Orleans, LA 70126.
3. Department of Microbiology and Immunology, Department of Medicine, Jonsson Comprehensive Cancer Center and UCLA School of Medicme, Los Angeles, CA 90024.
4. Division of Hematology-Oncology, Department of Medicine, Jonsson Comprehensive Cancer Center, and UCLA School ofMedicine, Los Angeles, CA 90024