Roaa M. Hamed, Majid M. Mahmood, and Ali H. Ad'hiah, “The abundance of Interleukin-22, 37, and 38 post-vaccination and following COVID-19 recuperation”, J Popl Ther Clin Pharmacol, vol. 30, no. 3, pp. 505–514, Mar. 2023, doi: 10.47750/jptcp.2023.30.03.054.