title: Response to Harper and Key-Schwartz.
authors.affiliation: RJ Lee Group, Inc., 350 Hochberg Road, Monroeville, PA 15146, USA.
authors.forename: R J
authors.initials: RJ
authors.lastname: Lee
authors.affiliation: RJ Lee Group, Inc., 350 Hochberg Road, Monroeville, PA 15146, USA. Electronic address: drew@rjlg.com.
authors.forename: D R
authors.initials: DR
authors.lastname: Van Orden
authors.affiliation: Cox Associates Inc, 503 Franklin Street, Denver, CO 80218, USA.
authors.forename: L A
authors.initials: LA
authors.lastname: Cox
authors.affiliation: RJ Lee Group, Inc., 350 Hochberg Road, Monroeville, PA 15146, USA.
authors.forename: S
authors.initials: S
authors.lastname: Arlauckas
authors.affiliation: RJ Lee Group, Inc., 350 Hochberg Road, Monroeville, PA 15146, USA.
authors.forename: R J
authors.initials: RJ
authors.lastname: Kautz