title: Authors' response.
authors.affiliation: Assistant Professor, Department of Health Policy and Health Services Research, Boston University Henry M. Goldman School of Dental Medicine, Boston, MA.
authors.forename: Astha
authors.initials: A
authors.lastname: Singhal
authors.affiliation: Associated Research Scientist, Public Policy Center, University of Iowa, Iowa City, IA.
authors.forename: Elizabeth T
authors.initials: ET
authors.lastname: Momany
authors.affiliation: Professor, College of Public Health, University of Iowa, Iowa City, IA.
authors.forename: Michael P
authors.initials: MP
authors.lastname: Jones
authors.affiliation: Professor and Department Head, College of Dentistry, University of Iowa, Iowa City, IA.
authors.forename: Daniel J
authors.initials: DJ
authors.lastname: Caplan
authors.affiliation: Professor, College of Dentistry and Faculty Associate, Public Policy Center, University of Iowa, Iowa City, IA.
authors.forename: Raymond A
authors.initials: RA
authors.lastname: Kuthy
authors.affiliation: Clinical Associate Professor, College of Medicine, University of Iowa, Iowa City, IA.
authors.forename: Christopher T
authors.initials: CT
authors.lastname: Buresh
authors.affiliation: Professor, College of Dentistry and Director, Public Policy Center, University of Iowa, Iowa City, IA.
authors.forename: Peter C
authors.initials: PC
authors.lastname: Damiano