1. Department of Medical Oncology, City of Hope National Medical Center, Duarte, California 91010
2. Department of Radiology, City of Hope National Medical Center, Duarte, California 91010
3. Wilshire Oncology Medical Group, Los Angeles, California 91790
4. Vestar Research, Inc., Pasadena, California 91106
5. Arthur Amos Noyes Laboratory of Chemical Physics, Department of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena 91125