Department of Radiation Oncology, University of Nebraska Medical Center, Omaha, NE
S.A.: design, analysis, manuscript writing, review, and editing; M.B.: Design, review, and editing; I.R.: analysis, review, editing; C.L.: Design, writing, review, and editing. All authors read and approved the final version of the manuscript.
The data used for this study will be available upon reasonable request from the corresponding author.
This study used data from the NCDB. The data is de-identified and holds no identifying patient information, and therefore, written informed consent was not needed for this study. The institutional review board (IRB) was also not required for the study.
Reprints: Chi Lin, Department of Radiation Oncology, University of Nebraska Medical Center, 986861 Nebraska Medical Center, Omaha, NE, 68198-6861 (e-mail: [email protected]).
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