Meo SA, Bukhari IA, Akram J, Meo AS, Klonoff DC (February 2021). «COVID-19 vaccines: comparison of biological, pharmacological characteristics and adverse effects of Pfizer/BioNTech and Moderna Vaccines». Eur Rev Med Pharmacol Sci25 (3): 1663-1669. PMID33629336. doi:10.26355/eurrev_202102_24877.
Meo SA, Bukhari IA, Akram J, Meo AS, Klonoff DC (February 2021). «COVID-19 vaccines: comparison of biological, pharmacological characteristics and adverse effects of Pfizer/BioNTech and Moderna Vaccines». Eur Rev Med Pharmacol Sci25 (3): 1663-1669. PMID33629336. doi:10.26355/eurrev_202102_24877.