GREENBROOK TMS REPORTS FIRST QUARTER OPERATIONAL AND FINANCIAL RESULTS

TORONTO, May 15, 2023 /PRNewswire/ – Greenbrook TMS Inc. (NASDAQ: GBNH) (“Greenbrook” or the “Company”) today announced its first quarter 2023 (“Q1 2023”) operational and financial results. All values in this news release are in United States dollars, unless otherwise stated. FIRST…