GBNH - Greenbrook TMS Inc. 2021 Q3 - Results - Earnings Call Presentation November, 16 2021 06:35 PM Greenbrook TMS Inc. The following slide deck was published by Greenbrook TMS Inc. in conjunction with their 2021 Q3 earnings call. For further details see: Greenbrook TMS Inc. 2021 Q3 - Results - Earnings Call Presentation