NOTE 15 — CONCENTRATIONS

Concentrations of Credit Risk

The Company’s financial instruments that are exposed to a concentration of credit risk are cash and accounts receivable. Generally, the Company’s cash and cash equivalents in interest-bearing accounts does not exceed FDIC insurance limits. The financial stability of these institutions is periodically reviewed by senior management.

Concentrations of Revenues

For the year ended December 31, 2021 and 2020, the following customers accounted for more than 10% of the Company’s net revenues:

Concentrations of Accounts Receivable

As of December 31, 2021 and 2020, the following customers represented more than 10% of the Company’s accounts receivable:

Customer 2 is U.S. Stem Cell Clinic, LLC, a related party, a partly owned investment in which the Company held a 49.9% member interest through February 10, 2021 (See Note 5).