Common Use. Any kind of problem related to vaccines.
https://www.dailymail.co.uk/news/article-9366963/Coronavirus-Pfizers-Covid-vaccine-linked-blood-clots-AstraZenecas-UK.html
https://www.cbc.ca/news/health/covid-19-vaccine-blood-clot-vitt-solution-research-1.6043185
https://www.nature.com/articles/d41586-021-00940-0
https://www.nejm.org/doi/full/10.1056/NEJMoa2104840
https://www.bbc.com/news/uk-wales-56764182
https://www.dailymail.co.uk/news/article-9498191/The-three-warning-signs-blood-clot-Covid-vaccination-expert-says-look-for.html
https://www.marketwatch.com/story/blood-clots-as-prevalent-with-pfizer-and-moderna-vaccine-as-with-astrazenecas-report-2021-04-15
Draper teenager hospitalized with blood clots after COVID-19 vaccine shot
https://www.nbcnews.com/health/health-news/johnson-johnson-vaccine-linked-28-cases-blood-clots-cdc-reports-n1267128