Also, if you're interested, the team of doctors at three Norwegian hospitals have just published their case study of the 5 Norwegian healthcare workers who experienced these rare blood clots.
"Although rare, VITT is a new phenomenon with devastating effects for otherwise healthy young adults and requires a thorough risk–benefit analysis. The findings of our study indicate that VITT may be more frequent than has been found in previous studies in which the safety of the ChAdOx1 nCoV-19 vaccine has been investigated."