[1] Univ Iowa, Carver Coll Med, Iowa City, IA 52242 USA
[2] Univ Iowa, Carver Coll Med, Program Bioeth & Humanities, 200 Hawkins Dr 2966-Z JPP, Iowa City, IA 52242 USA
[3] Univ Iowa Hosp & Clin, Div Pediat Surg, Dept Surg, Iowa City, IA 52242 USA
[4] Univ Iowa, Dept Anthropol, Iowa City, IA 52242 USA