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. Author manuscript; available in PMC: 2019 Oct 1.
Published in final edited form as: Int J Radiat Oncol Biol Phys. 2018 Jun 6;102(2):383–390. doi: 10.1016/j.ijrobp.2018.05.066

Figure 1.

Figure 1.

Consolidated Standards of Reporting Trials (CONSORT) diagram.

Abbreviations: SEER = Surveillance, Epidemiology, and End Results database