5123 | Gritti et al., 2020 | 2 | 30 | 0 | excluded | not a RCT | risk of bias not avaialble |
5366 | Rimland, 2020 | 2 | 30 | 0 | excluded | not a RCT | risk of bias not avaialble |
5494 | BREATH-19 Study, 0 | 2 | 30 | 0 | excluded | not a RCT | risk of bias not avaialble |
5523 | Toniati, 2020 | 2 | 99 | 0 | excluded | not a RCT | risk of bias not avaialble |
5526 | Price, 2020 | 2 | 13 | 0 | excluded | not a RCT | risk of bias not avaialble |
5632 | Holt, 2020 | 2 | 13 | 0 | excluded | not a RCT | risk of bias not avaialble |
5672 | Klopfenstein, 2020 | 2 | 13 | 4 | excluded | not a RCT | high risk of bias |