S. . Zibadi, N. . Samieefar, F. . Sodeifian, N. . Mosavari, and N. Rezaei, “COVID-19 Vaccination: What Challenges Are We Going to Face”, Acta Biomed, vol. 92, no. 4, p. e2021379, Sep. 2021, doi: 10.23750/abm.v92i4.11759.