Study: Stem Cells Used To Fix Your Broken Heart It's Called The Marvel Study The Largest Clinical Trial Investigating Adult Stem Cells To Treat Congestive Heart Failure For More Info, Call Jim Moran Heart & Vascular Center At (954) 229-8400 MIAMI (CBS4) ― Doctors are discovering a new way to fix your broken heart. A study is underway in South Florida that could revolutionize the way heart attack patients help their damaged hearts by using their own stem cells. It's called The Marvel Study and under the direction of Dr. Alan Neiderman with the Jim Moran Heart & Vascular Research...