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(a) Proportion of patients who did not undergo EGFR testing. (
) No testing although physician recommended test, (
) No testing because physician did not recommend test, (
) other reasons, and (
) unknown reasons. (b) Patient reasons for declining EGFR testing although a physician recommended the test. TKI, tyrosine kinase inhibitor. (
) High detection fee, (
) expensive TKI, (
) unknown, and (
) time constraint.
