[1] Univ Calif Los Angeles, Natl Clinician Scholars Program, Los Angeles, CA USA
[2] Univ Pennsylvania, Philadelphia, PA USA
[3] Kaiser Permanente Southern Calif, Pasadena, CA USA
[4] Univ Calif San Francisco, San Francisco, CA 94143 USA
[5] Oregon Hlth & Sci Univ, Knight Cardiovascular Inst, Portland, OR USA
[6] Angeles Med Ctr, Kaiser Permanente Southern Calif, Los Angeles, CA USA