title: Response to Magnus and Wilfond.
authors.affiliation: Department of Bioethics, National Institutes of Health, Bethesda, MD, USA scott.kim@nih.gov.
authors.forename: Scott Y H
authors.initials: SY
authors.lastname: Kim
authors.affiliation: Weill Cornell Medical College, New York, NY, USA.
authors.forename: Franklin G
authors.initials: FG
authors.lastname: Miller