| Study | Reason for exclusion |
|---|---|
| Filippi 2018 | Ineligible intervention |
| Gill 2014 | Ineligible intervention |
| Nuñez‐Ramiro 2019 | Ineligible intervention |
| Surkov 2019 | Observational study, as reported in the correction in 2021 (the original publication in 2019 reported as a randomized trial) |
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