title: Authors' Reply.
authors.affiliation: New York, New York.
authors.forename: Cynthia A
authors.initials: CA
authors.lastname: Kahlenberg
authors.affiliation: New York, New York.
authors.forename: Benedict U
authors.initials: BU
authors.lastname: Nwachukwu
authors.affiliation: Chicago, Illinois.
authors.forename: Kamran S
authors.initials: KS
authors.lastname: Hamid
authors.affiliation: New York, New York.
authors.forename: Michael E
authors.initials: ME
authors.lastname: Steinhaus
authors.affiliation: New York, New York.
authors.forename: Riley J
authors.initials: RJ
authors.lastname: Williams
mesh_terms: D002356:Cartilage; D010027:Osteotomy