"There was a 44 percent reduction in death, heart attack, and stroke among people taking Crestor, " says Nissen.

CNN: FDA considers statin use for those with normal cholesterol

Her lawyers argue that Vioxx caused Irwin's heart-attack death.

FORBES: Topol's Exit

The trial showed that patients randomized to chelation therapy had a lower risk of a combined endpoint of death, heart attack, stroke, percutaneous coronary intervention, bypass surgery or hospitalization for angina than those who received a placebo infusion.

FORBES: Researchers Who Ran Controversial Chelation Trial Respond to Questions