1. David Geffen School of Medicine at UCLA Los Angeles California USA
2. Division of Cardiology, David Geffen School of Medicine at UCLA Los Angeles California USA
3. Department of Cardiothoracic Surgery, David Geffen School of Medicine at UCLA Los Angeles California USA
4. Division of Infectious Diseases, David Geffen School of Medicine at UCLA Los Angeles California USA
5. Division of Geriatrics, David Geffen School of Medicine at UCLA Los Angeles California USA