title: Authors' Response.
authors.affiliation: Department of Comparative Medicine, University of Washington School of Medicine, Seattle, WA, USA.
authors.forename: P M
authors.initials: PM
authors.lastname: Treuting
authors.affiliation: Department of Comparative Medicine, University of Washington School of Medicine, Seattle, WA, USA.
authors.forename: C
authors.initials: C
authors.lastname: Hsu