Study concept and design: Singh, Meier, Savitz, Cavanagh, Allen, Teague, Polanski, Bellgowan.
Acquisition, analysis, or interpretation of data: Singh, Meier, Kuplicki, Mukai, Nerio, Bellgowan.
Drafting of the manuscript: Singh, Meier, Bellgowan.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: Singh, Meier, Bellgowan.
Administrative, technical, or material support: Singh, Mukai, Allen, Teague, Bellgowan.
Study supervision: Singh, Polanski, Bellgowan.
Conflict of Interest Disclosures: All authors have completed and submitted the ICMJE Form for Disclosure of Potential Conflicts of Interest and none were reported.
Funding/Support: This research was conducted using internal funds from the Laureate Institute for Brain Research, which is supported by the William K. Warren Foundation.
Role of the Sponsor: The funding organization had no role in the design and conduction of this study; collection, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; or decision to submit the manuscript for publication.