In China, doctors are treating more and more cancer patients with the gene-editing tool known as CRISPR. But research on the technique is still limited.
Q&A On GOP Health Care Bill
This week, Republicans in Congress will try to rally votes behind a bill that proposes major changes to the way Americans get health care and how much they pay.
In Arizona, hundreds of thousands of people could be affected. Use this Q&A to explore how the bill would affect you.