1. Speech and Feeding Disorders Lab, MGH Institute of Health Professions, Boston, Massachusetts, USA
2. Department of Biostatistics, College of Public Health, University of Kentucky, Lexington, Kentucky, USA
3. Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, North Carolina, USA
4. Division of Speech and Hearing Sciences, School of Medicine, University of North Carolina, Chapel Hill, North Carolina, USA
5. Department of Craniofacial and Surgical Care, Associate Director, Speech-Language Pathology, Craniofacial Center, School of Dentistry, University of North Carolina, Chapel Hill, North Carolina, USA