Created at	Source	Raw Value	Validated value
Nov. 19, 2021, 7:30 p.m.	usa	multi-center	multi-center
Nov. 15, 2021, 6:30 p.m.	usa	single-center	single-center
Aug. 26, 2021, 7:30 p.m.	usa	multi-center?	multi-center?
Aug. 17, 2021, 6 p.m.	usa	unclear	unclear