Funding for this research was provided by:
National Institutes of Health (5T32DC000027-25, 5K23DC013056-02)
First Online: 6 January 2016
Compliance with Ethical Standards
: Aisha Harun was funded by a T32 Award (5T32DC000027-25). Yuri Agrawal was funded by a NIH K23 Award (5K23DC013056-02). Aisha Harun, Carol Li, John F. P. Bridges, and Yuri Agrawal have no conflicts of interest to report. The hospital institutional review board approved this study (Baltimore, MD: study number CR00007456) and the study was performed in accordance with the ethical standards of the Declaration of Helsinki. Informed consent was obtained from all individuals who participated in the study.