1. COVID-19 (Novel coronavirus 2019)-recent trends;Kannan;Eur Rev Med Pharmacol Sci,2020
2. Centers for Disease Control and Prevention, “COVID Data Tracker,” Centers for Disease Control and Prevention. [Online]. Available: https://covid.cdc.gov/covid-data-tracker/#datatracker-home [Accessed 11 September 2021].
3. Attitudes toward COVID-19 vaccines in Chinese adolescents;Cai;Frontiers in Medicine,2021
4. Covid-19 vaccine acceptance, hesitancy, and refusal among Canadian healthcare workers: A multicenter survey;Dzieciolowska;American Journal of Infection Control,2021
5. Psychological factors associated with uptake of the childhood influenza vaccine and perception of post-vaccination side-effects: A cross-sectional survey in england;Smith;Vaccine,2017