[1] Univ Calif Irvine, Program Nursing Sci, Irvine, CA 92697 USA
[2] Univ Calif Irvine, Palliat Care Serv, Irvine, CA 92697 USA
[3] Univ Calif Irvine, Dept Med, Irvine, CA 92697 USA
[4] Univ Calif Irvine, Pro HEART Program Nursing Sci, Irvine, CA 92697 USA
[5] Univ Calif Irvine, Clin Heart Failure Program, Irvine Med Ctr, Irvine, CA 92697 USA
[6] Hoag Mem Hosp, Newport Beach, CA USA