LBA55 An ultra-sensitive and specific ctDNA assay provides novel pre-operative disease stratification in early stage lung cancer

James R. Black, Alexander M. Frankell, Selvaraju Veeriah, Marzia Colopi, Mark S. Hill, Charles W. Abbott, S.M. Boyle, Bo Li, Rui Chen, Maise Al Bakir, C. Martinez Ruiz, Ariana Huebner, Mariam Jamal‐Hanjani, Nicholas McGranahan, Charles Swanton