Created at	Source	Raw Value	Validated value
Nov. 19, 2021, 7:30 p.m.	usa	multi-center	multi-center
Aug. 23, 2021, 7 p.m.	usa	single-center	single-center
July 14, 2021, 6 a.m.	usa	unclear	unclear
June 5, 2021, 12:32 a.m.	usa	TODO (nan)