[1] Univ Washington, Div Cardiol, Eth Consultat Serv, 1959 NE Pacific St, Seattle, WA 98125 USA
[2] St Louis Univ, Div Cardiol, Dept Med, St Louis, MO 63103 USA
[3] Univ Alabama Birmingham, Ctr Palliat & Support Care, Birmingham, AL USA
[4] Birmingham Vet Affairs Med Ctr, Birmingham, AL USA
[5] Boston Childrens Hosp, Dept Cardiol, Boston, MA USA
[6] Columbia Univ, Med Ctr, New York Presbyterian Hosp, New York, NY USA
[7] Portland VA Med Ctr, Portland, OR USA
[8] Patient Ctr Educ & Res, Portland, OR USA