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Supplemental Information

Supplemental Information 1

DOI: 10.7287/peerj.preprints.40v1/supp-1

Supplemental Information 2

DOI: 10.7287/peerj.preprints.40v1/supp-2

Additional Information

Competing Interests

There are no competing interests.

Author Contributions

Jeffrey D. Allen conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper.

Yang Xie conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper.

Guanghua Xiao conceived and designed the experiments, performed the experiments, analyzed the data, wrote the paper.

Grant Disclosures

The following grant information was disclosed by the authors:

This work was supported by the National Institutes of Health [5R01CA152301 to YX, 4R33DA027592 to JA and GX, P50CA70907 to YX]; the National Science Foundation [DMS-0907562 to GX]; and the National Aeronautics and Space Administration [NNJ05HD36G to JA and YX].

Funding

This work was supported by the National Institutes of Health [5R01CA152301 to YX, 4R33DA027592 to JA and GX, P50CA70907 toYX]; the National Science Foundation [DMS-0907562 to GX]; and the National Aeronautics and Space Administration [NNJ05HD36G to JA and YX]. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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