Fig. 1From: The value of cell-free circulating tumour DNA profiling in advanced non-small cell lung cancer (NSCLC) managementProposed algorithm for clinical interpretation of a liquid biopsy for the detection of targetable mutations. For clinical interpretation, a targetable alteration found in a liquid biopsy is considered a true positive finding and is used to guide treatment selection. A liquid biopsy with no detectable alteration must be confirmed with a tissue biopsy to overcome false negative resultsBack to article page