title: Author Reply.
authors.affiliation: Memorial Sloan Kettering Cancer Center, New York, NY.
authors.forename: Andrew J
authors.initials: AJ
authors.lastname: Vickers
authors.affiliation: Memorial Sloan Kettering Cancer Center, New York, NY.
authors.forename: James A
authors.initials: JA
authors.lastname: Eastham
authors.affiliation: Memorial Sloan Kettering Cancer Center, New York, NY.
authors.forename: Peter T
authors.initials: PT
authors.lastname: Scardino
authors.affiliation: Memorial Sloan Kettering Cancer Center, New York, NY.
authors.forename: Hans
authors.initials: H
authors.lastname: Lilja