Submitted for Publication: February 5, 2013; final revision received July 15, 2013; accepted July 26, 2013.
Published Online: October 31, 2013. doi:10.1001/jamaoto.2013.5444.
Study concept and design: Zu, Narayanan, Kim, Nayak, Sinha.
Acquisition of data: Zu, Narayanan, Kim, Nayak, Villegas, Ouyoung, Sinha.
Analysis and interpretation of data: Zu, Narayanan, Bronson-Lowe, Ouyoung, Sinha.
Drafting of the manuscript: Zu, Kim, Nayak, Villegas, Ouyoung, Sinha,
Critical revision of the manuscript for important intellectual content: Zu, Narayanan, Nayak, Bronson-Lowe, Sinha.
Statistical analysis: Zu, Sinha.
Obtained funding: Zu, Nayak, Sinha.
Administrative, technical, or material support: Zu, Narayanan, Kim, Nayak, Villegas, Ouyoung, Sinha.
Study supervision: Zu, Narayanan, Nayak, Sinha.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was partially sponsored by the National Institute on Deafness and Other Communication Disorders (NIDCD, grant DC007124, “Dynamics of Vocal Tract Shaping”).
Role of the Sponsor: The sponsor played a role in the process of collection, management, analysis, and interpretation of the data.