- Received in October 13, 2016.
- Accepted in December 2, 2016.
- Published print in December 9, 2016.
- 1Department of Anatomy and Neurobiology, College of Medicine, Northeast Ohio Medical University, Rootstown, Ohio 44272
- 2School of Biomedical Sciences, Kent State University, Kent, Ohio 44240
- Correspondence should be addressed to Dr. Yong Lu, Department of Anatomy and Neurobiology, College of Medicine, Northeast Ohio Medical University, Rootstown, OH 44272. E-mail: .
Author contributions: R.J.C. and Y.L. designed research; R.J.C. performed research; R.J.C. analyzed data; R.J.C. and Y.L. wrote the paper.
The authors declare no competing financial interests.
This work was supported by Department of Health and Human Services/National Institutes of Health/National Institute on Deafness and other Communication Disorders Grants F31-DC-015707 (to R.J.C.) and R01-DC-008984 (Y.L.), and an Institutional Bridge Fund grant (Y.L.).