[1] Indiana Univ, Sch Med, Div Hematol Oncol, Indianapolis, IN 46202 USA
[2] Charles Warren Fairbanks Ctr Med Eth, Indianapolis, IN USA
[3] Indiana Univ, Sch Law, Dept Philosophy, Indianapolis, IN 46202 USA
[4] Indiana Univ, Ctr Bioeth, Dept Med, Indianapolis, IN 46202 USA
[5] Indiana Univ, Sch Med, Indianapolis, IN 46202 USA
[6] Indiana Univ, Sch Liberal Arts, Indianapolis, IN 46202 USA