Cancer mutation patterns differ in smokers, nonsmokers
DNA damage signatures offer clues to origin of malignancies in various tissues
![lady smoking](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2016/11/110316_RE_smoking_main.jpg?fit=860%2C460&ssl=1)
SMOKE SIGNALS Zeroing in on DNA mutations in tumors from nonsmokers and smokers offers clues to cancers’ causes.
Billion Photos/Shutterstock