Extended Data Figure 4: Histogram of depth of coverage for next-generation sequencing of tumour samples.
From: Extrachromosomal oncogene amplification drives tumour evolution and genetic heterogeneity
We sequenced 117 tumour samples including 63 cell lines, 19 neurospheres (PDX) and 35 cancer tissues with coverage ranging from 0.6× to 3.89× (excluding one sample with 0.06× coverage) with median coverage of 1.19×. 
