In relation to the precision of lung cancer diagnosis, a study demonstrated that ExoDx (EGFR) exhibits a sensitivity of 90% for L858R, 83% for T790M, and 73% for exon 19 indels, with corresponding specificities of 100%, 100%, and 96%, respectively (Mohammadi et al., 2021). The gene discussed is EGFR; the disease is lung cancer.