That would lower the cancer risk to 1 in 200,000, he said.
If so, how high is the cancer risk associated with a positive test?
"That is a safe level for a one in a million cancer risk."
What does it mean for people worried about their cancer risk?
Some studies have shown they may also reduce your cancer risk.
In addition to cancer risk, there are other potential side effects with this class of drugs.
Some women will not notice anything at all and there is no evidence of an increased cancer risk.
Cancer risk has also been found to grow with height.
The cancer risk for smokers is 100 to 1,000 times higher.
Experts answer questions about the impact of drinking on cancer risk, heart health, and more.
