https://apnews.com/106808694cb797a59db366df54e85692

WASHINGTON (AP) — Hundreds of clinics pushing unproven stem cell procedures caught a big break from the U.S. government in 2017: They would have three years to show that their questionable treatments were safe and worked before regulators started cracking down.

But when the Food and Drug Administration's grace period expired in late May — extended six months due to the pandemic — the consequences became clear: Hundreds more clinics were selling the unapproved treatments for arthritis, Alzheimer’s, COVID-19 and many other conditions.