The document describes a dataset containing cancer samples from multiple types. It includes 3131 cancer samples from 26 different cancer types with at least 20 samples per type. The majority of the samples, 2520, came from clinical samples while 541 came from cell lines. There were also 1480 normal samples for comparison.
2. Samples 3131 cancer samples 2965 from 26 cancer types, more than 20 samples per type; 17 types with 40 or more samples 2520 from clinical samples, 541 from cell lines 1480 normal samples Some paired, but unclear if this was used in the analysis.