 Gracell Biotechnologies Inc. NASDAQ:GRCL Q1 2022 Earnings Conference Call May 16, 2022 8:00 AM ET Company Participants Dr. William Cao - Founder, Chairman, and CEO Dr. Martina Sersch - CMO Dr. Kevin Xie - CFO Conference Call Participants Joe Catanzaro - Piper Sandler Kelly Shi - Jefferies Nick Abbott - Wells Fargo Operator Ladies and gentlemen, thank you for standing by. Welcome to the Gracell Biotechnologies First Quarter 2022 Conference Call. 