References:
1 www.cdc.gov/vaccines/acip/meetings/downloads/slides-2021-04-23/03-COVID-Shimabukuro-508.pdf

2. www.cdc.gov/disasters/lightning/victimdata.html

3. www.cdc.gov/transportationsafety

4. www.hematology.org/covid-19/vaccine-induced-immune-thrombotic-thrombocytopenia

5. Heparin-induced thrombocytopenia. N Engl J Med 2015;373:252-261