| Im et al.16) | 2024 | South Korea | Case Report | 1 | Unspecified |
| Jiang et al.21) | 2023 | Taiwan | Randomized Controlled Trial | 78 (38/40) | Post-traumatic |
| Bhat et al.11) | 2023 | India | Case Report | 1 | Post-viral (COVID-19) |
| Ono et al.4) | 2022 | Japan | Retrospective Cohort Study | 87 (52/35) | Post-viral (COVID-19) |
| Morita et al.13) | 2022 | Japan | Case Report | 2 | Post-viral (COVID-19) |
| Drews et al.10) | 2022 | Germany | Randomized Controlled Trial | 60 (30/30) | Post-viral |
| Takayama et al.5) | 2021 | Japan | Case Report | 5 | Post-viral (COVID-19) |
| Hunter et al.17) | 2021 | United Kingdom | Case Report | 1 | Post-viral |
| Park et al.12) | 2019 | South Korea | Retrospective Observational Study | 16 | post-viral, sinonasal, traumatic, unknown |
| Kang et al.18). | 2018 | South Korea | Case Report | 2 | Sinonasal (chronic rhinosinusitis) |
| Jeon et al.19) | 2017 | South Korea | Case Report | 2 | Post-viral, Sinonasal |
| Moon et al.20) | 2017 | South Korea | Case Report | 1 | Post-viral |
| Vent et al.22) | 2010 | Germany | Retrospective Cohort Study | 30 (15/15) | Post-viral |