1 Table of Contents: “...Contents: The frequency of clotting side-effects in COVID-19 vaccines -- The characteristics...”

2 Subjects: “...COVID-19 Vaccines...”

3 Subjects: “...COVID-19 Vaccines / administration & dosage...”

4 Subjects: “...COVID-19 Vaccines...”

5 Subjects: “...COVID-19 vaccine...”

6 Table of Contents: “... development -- Drawbacks, limitations, and potential ethical issues -- Possible COVID-19 vaccine candidates...”

7 Subjects: “...COVID-19 Vaccines...”

8 Subjects: “...COVID-19 vaccine...”

9 Table of Contents: “... vaccine -- COVID-19 vaccine -- Modern vaccine development -- Vaccines and politics...”

10 Subjects: “...COVID-19 Vaccines / immunology...”

11 Subjects: “...COVID-19 vaccine...”

12 Subjects: “...COVID-19 Vaccines...”

13 Table of Contents: “... vaccine -- COVID-19 vaccine -- Modern vaccine development -- Vaccines and politics...”

14 Subjects: “...COVID-19 Vaccines...”

15 Subjects: “...COVID-19 Vaccines...”

16 Subjects: “...COVID-19 Vaccines...”

17 Subjects: “...COVID-19 Vaccines...”

18 Subjects: “...COVID-19 Vaccines...”

19 Subjects: “...COVID-19 vaccine...”

20 Subjects: “...COVID-19 Vaccines...”