title: Dr. Matteson and Ms. Crowson reply.
authors.affiliation: Mayo Clinic and Mayo Foundation, Rochester, Minnesota, USA; matteson.eric@mayo.edu.
authors.forename: Eric L
authors.initials: EL
authors.lastname: Matteson
authors.affiliation: Mayo Clinic Health Science Research, Rochester, Minnesota, USA.
authors.forename: Cynthia S
authors.initials: CS
authors.lastname: Crowson