Out now in @nature! Introducing our new method T cell ExTRECT that uses DNA sequencing data to directly quantify T cell fraction and its application in cancer. A quick thread 🧵 nature.com/articles/s4158… (1/20) First, this work came about quite unexpectedly. One day about 18 months ago we noticed something strange in our data. The tools we use to detect somatic copy number alterations in cancer were very frequently detecting alterations in a very small region of chr 14... (2/20)