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. 2023 Aug 1;12(15):15777–15787. doi: 10.1002/cam4.6191

TABLE 2.

ctDNA by treatment category.

Positive in blood & saliva Positive in blood or saliva Negative Total patients
Pre‐treatment patients 24 a 32 3 35
Post‐treatment patients 4 4 46 50
Control patients (HPV− HNC) 0 0 17 17
a

Saliva unavailable for 5 patients, blood unavailable for 2 patients.