Photographer: Mauricio Lima/AFP via Getty Images

Stem Cell Clinics Selling Risky Treatments Explode Across the U.S.

Study finds 570 outposts marketing cures for spinal cord injuries, cardiac problems, and more. The FDA is trying to catch up.

Unproven stem cell therapies have been scorned as “medicine’s Wild West.” Patients have died while undergoing treatment. Yet others have called them “miraculous.” Hundreds of NFL players have sought them out.

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