Sallam, M. (2021). COVID-19 Vaccine Hesitancy Worldwide: A Concise Systematic Review of Vaccine Acceptance Rates. Vaccines, 9(2), 160. https://doi.org/10.3390/vaccines9020160

Hong, Jihoon, Ikjae Jung, Mingeol Park, Kyumin Kim, Sungook Yeo, Joohee Lee, Yujin Hong, Jangho Park, and Seockhoon Chung. ‘The Attitudes of Medical Students for Their Roles and Social Accountability in the COVID-19 Pandemic Era’. Preprint. PsyArXiv, 19 August 2020. https://doi.org/10.31234/osf.io/478ef.