Researchers at Wake Forest University looked at a certain protein that regulates iron and studied the amount of it in breast cancer cells.

VOA: standard.2010.08.05

Researchers say the speech impediment appears to stem from a defectin the gene that regulates the way brain cells break down and recycle waste products.

VOA: standard.2010.02.11

It regulates the lasers used in the procedure.

VOA: standard.2010.03.03