A novel KRAS exon 2 drop-off digital PCR assay for mutation detection in cell-free DNA of cancer patients. - Addamo-De Nard, Bianca; Geissmann, Meret; Akhoundova, Dilara; Pistoni, Clelia; Brezina, Tomas; Zoche, Martin; Weber, Achim; Hussung, Saskia; Fritsch, Ralph (Diagnostic Pathology, 2025)