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. Author manuscript; available in PMC: 2020 Oct 1.
Published in final edited form as: Head Neck. 2019 Jul 11;41(10):3551–3563. doi: 10.1002/hed.25873

Figure 1. Consolidated Standards of Reporting Trials Diagram Detailing the Study Inclusion Criteria.

Figure 1.

NCDB, National Cancer Database; N, number; cT, tumor classification; cN, node classification; cM, metastasis classification; cM1, positive metastasis classification