title: To the Editor.
authors.affiliation: *Center for Surgery and Public Health, Harvard Medical School, Boston, MA †Department of Orthopedic Surgery, Brigham and Women's Hospital, Boston, MA.
authors.forename: David
authors.initials: D
authors.lastname: Metcalfe
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Weaver
authors.forename: Mitchel B
authors.initials: MB
authors.lastname: Harris