Study concept and design: Gadalla, Spellman, Williams, Savage.
Acquisition, analysis, or interpretation of data: Gadalla, Wang, Haagenson, Spellman, Lee, Williams, Wong, De Vivo, Savage.
Drafting of the manuscript: Gadalla, Savage.
Critical revision of the manuscript for important intellectual content: All the authors.
Statistical analysis: Gadalla, Wang, Haagenson.
Obtained funding: Gadalla, Savage.
Administrative, technical, or material support: Gadalla, Spellman, Wong, Savage.
Study supervision: Gadalla, Spellman, Williams, Savage.
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: The study was supported by Public Health Service grant U24-CA76518 from the National Cancer Institute, the National Heart, Lung, and Blood Institute and the National Institute of Allergy and Infectious Diseases, Health Resources (Drs Wang and Lee and Messrs Haagenson and Spellman), and grant HHSH234200637015C from the Services Administration, grants N00014-13-1-0039 and N00014-14-1-0028 from the Office of Naval Research (Dr Wang and Messrs Haagenson and Spellman), grant 2R01 CA082838 from the National Institutes of Health (Dr De Vivo), and the Intramural Research Program of the National Cancer Institute (Drs Gadalla and Savage).
Role of the Sponsors: The above-mentioned funding agencies were not responsible for the design and conduct of the study, for the collection, management, analysis, and interpretation of the data; or in the preparation, review, or approval of the manuscript; or the decision to submit the manuscript for publication.
Other Contributions: We thank Heather Severance, MS, of the Center for International Blood and Marrow Transplant Research for assistance in manuscript preparation, who received no compensation for her assistance.