Medications

Good news, bad news on dental pain care seen in new study

Americans who have a tooth pulled or another painful dental procedure in the United States today are far less likely to get opioid painkillers than they were just a few years ago, a new study shows.

Oncology & Cancer

Study sheds light on the mysterious evolution of DNA rings in tumors

Tumors sometimes seem to take on a life of their own, growing at an unusually fast rate or suddenly developing resistance to a cancer drug. This behavior is often explained by cancer genes separating from the cell's own chromosomes ...

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