Issues for conducting meta-analyses in COVID-19. Commentary on "Prevalence and severity of corona virus disease 2019 (COVID-19): A systematic review and meta-analysis''
2 PhD School of Microbiology, Immunology, Infectious Diseases, Transplantation and Related Disease, University of Rome Tor Vergata, Rome, Italy; Department of Biomedicine and Prevention, University of Rome Tor Vergata, Rome, Italy.
3 Unit of Pain Therapy, Policlinic of Tor Vergata, Rome, Italy; Department of Clinical Science and Translational Medicine, University of Rome Tor Vergata, Rome, Italy; Department of Systems Medicine, University of Roma Tor Vergata, Rome, Italy. Electronic address: wardatm1@gmail.com.