Akbari H, Tabrizi R, Lankarani KB, Aria H, et al. The role of cytokine profile and lymphocyte subsets in the severity of
coronavirus disease 2019 (COVID-19): A systematic review and meta-analysis. Life Sci 2020 Jul 28:118167. doi: 10.1016/j.lfs.2020.118167.
PMID: 32735885