Fig 2. Somatic variants in lung cancer tumour and plasma DNA.

Variant allele frequency of mutations are shown in solid red bars for tumour and in hatched blue bars for ctDNA, for different types of lung cancer (Adenocarcinoma; Squamous, squamous cell carcinoma; Small cell, small cell lung cancer). Tumour DNA from squamous and small cell lung cancer patients was not available for sequencing. Mutations are denoted as somatic because they were not present in germline DNA from the same patients.