| Affiliation: | 1. Division of Cardiology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California;2. Department of Medicine, University of California, Riverside, California;3. Department of Internal Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California;4. University of California, Irvine Libraries, Reference Department, Irvine, California;5. David Geffen School of Medicine at UCLA, Los Angeles, California;6. Department of Biostatistics, UCLA, Los Angeles, California;7. Department of Biomathematics, UCLA, Los Angeles, California |
