GRCL - Gracell Biotechnologies Inc. 2021 Q4 - Results - Earnings Call Presentation March, 14 2022 10:35 AM Gracell Biotechnologies Inc. The following slide deck was published by Gracell Biotechnologies Inc. in conjunction with their 2021 Q4 earnings call. For further details see: Gracell Biotechnologies Inc. 2021 Q4 - Results - Earnings Call Presentation