Study | Exclusion reasons | Remarks | Reference(s) | ||
---|---|---|---|---|---|
Gritti et al., 2020 | single-arm | inadequate or absent control group | |||
Holt, 2020 | retrospective cohort | other | no CI reported | ||
Klopfenstein, 2020 | retrospective cohort | other | major flaws in the method |
Klopfenstein T International Journal of Infectious Diseases 10.1016/j.ijid.2020.08.024 |