title: Practical and ethical challenges to paired exchange programs.
authors.forename: Lainie Friedman
authors.initials: LF
authors.lastname: Ross
authors.forename: Stefanos
authors.initials: S
authors.lastname: Zenios
mesh_terms: D001788:Blood Grouping and Crossmatching; D006801:Humans; D014019:Tissue Donors; D009927:Tissue and Organ Procurement / Q000941:ethics*