1. Advanced
Clinical Biosystems Institute, Heart Institute, Cedars Sinai Medical Center, Los
Angeles, California 90048, United States
2. Beckman Coulter
Life Sciences, Indianapolis, Indiana 46268, United States
3. Pathology
and Laboratory Medicine, Cedars Sinai Medical Center, Los Angeles, California 90048, United States
4. SCIEX, Redwood City, California 94065, United States