In March 2021, 1,480 U.S. businesses operating 2,754 clinics were found selling purported stem cell treatments for various indications. More than four times as many businesses than were identified 5 years ago are selling stem cell products that are not FDA-approved and lack convincing evidence of safety and efficacy.

中文翻译：

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2021 年美国干细胞销售情况：美国企业销售未经许可和未经证实的干细胞干预措施

2021 年 3 月，发现 1,480 家美国企业经营着 2,754 家诊所，销售据称用于各种适应症的干细胞治疗。销售未经 FDA 批准且缺乏令人信服的安全性和有效性证据的干细胞产品的企业数量是 5 年前确定的企业数量的四倍多。