A cardiologist at Burlington, MA-based Lahey Clinic said he was fired for resisting pressure from two top physicians at the hospital to use stents made by device giant Medtronic Inc., even though the company's stents might not have been best for some patients. David Gossman, MD, who worked at Lahey for more than 20 years, alleged in a lawsuit that the two doctors pressed him and other cardiologists to use Medtronic stents, because they believed if the hospital increased its use of the product Medtronic would let Lahey participate in clinical trials for a new heart valve. A Lahey spokesman told the Boston Globe the hospital's corporate compliance department investigated the allegations and found them to be "totally groundless."