1 About this document

This document is supplementary information for

Gregor Sturm, Markus List and Jitao David Zhang. Tissue heterogeneity is prevalent in gene expression studies.

This document demonstrates step-by-step how we generated and validated tissue signatures, curated the input data, and derive our results.

The source code and instructions how to reproduce this study are available from https://github.com/grst/bioqc_geo.