Cystic Fibrosis

There's still no cure for cystic fibrosis, but scientists think they may be homing in on new treatments for the deadly hereditary disease - thanks to new research that pinpoints the mutant genes responsible for severe CF.Researchers studied DNA from almost 3,500 cystic fibrosis patients, searching for mutant genes shared by those with the most severe forms of severe cystic fibrosis. They found