[1] Univ Pittsburgh, Dept Obstet Gynecol & Reprod Sci, Div Gynecol Oncol, Sch Med, Pittsburgh, PA 15213 USA
[2] Univ Pittsburgh, Dept Med, Pittsburgh, PA 15213 USA
[3] Univ Pittsburgh, Palliat Res Ctr, Sect Palliat Care & Med Eth, Pittsburgh, PA 15213 USA
[4] Univ Pittsburgh, Div Gen Internal Med, Pittsburgh, PA 15213 USA
[5] Univ Pittsburgh, Dept Crit Care Med, Program Eth & Decis Making Crit Illness, Pittsburgh, PA 15213 USA
[6] Albert Einstein Coll Med, Albert Einstein Canc Ctr, Bronx, NY 10467 USA
[7] Univ Pittsburgh, Sch Nursing, Pittsburgh, PA 15213 USA