Mayyadah Rafeeq, and Majid S. Jabir. “Investigation of TNF-α and IL-4 in Pfizer/BioNTech Vaccinated People: A Comparative Study”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 30, no. 5, Mar. 2023, pp. 360-5, doi:10.47750/jptcp.2023.30.05.036.