Michael R Perkins Editor

Martin J. Ball is Hawthorne Endowed Professor and Head of the Department of Communicative Disorders at the University of Louisiana at Lafayette.

Michael R. Perkins is Professor of Clinical Linguistics in the Department of Human Communication Sciences at the University of Sheffield, England.

Nicole Müller is Hawthorne-BoRSF Endowed Professor in the Department of Communicative Disorders at the University of Louisiana at Lafayette.

Sara Howard is Senior Lecturer in Clinical Phonetics in the Department of Human Communication Sciences at the University of Sheffield.