Letters

Affiliations

• ¹ Clinical Assistant Professor of Orthodontics, Department of Orthodontics, University of Washington, Seattle, WA.
• ² Clinical Associate Professor of Orthodontics, Department of Orthodontics, University of Washington, Seattle, WA.
• ³ Assistant Professor of Orthodontics, Department of Orthodontics, University of British Columbia, Vancouver, BC, Canada.
• ⁴ Kokich-Shapiro Endowed Professor and Chair, Department of Orthodontics, University of Washington, Seattle, WA.