[1] Univ Pittsburgh, Div Gen Internal Med, Sect Palliat Care & Med Eth, Palliat Res Ctr PaRC, Pittsburgh, PA USA
[2] Emory Univ, Emory Palliat Care Ctr, Sch Med, 1821 Clifton Rd NE,Suite 1017, Atlanta, GA 30329 USA
[3] Univ Pittsburgh, Div Gen Internal Med, Sect Palliat Care & Med Eth, Pittsburgh, PA USA
[4] Univ Pittsburgh, Sch Nursing, Pittsburgh, PA USA
[5] Univ Pittsburgh, Dept Crit Care Med, Program Eth & Decis Making Crit Illness, Sch Med, Pittsburgh, PA USA
[6] Johns Hopkins Univ, Sch Med, Div Gen Internal Med, Sect Palliat Med, Baltimore, MD USA
[7] Sidney Kimmel Comprehens Canc Ctr, Baltimore, MD USA
[8] Albert Einstein Coll Med, Albert Einstein Canc Ctr, New York, NY USA
[9] Univ Pittsburgh, Div Gen Internal Med, Pittsburgh, PA USA