Tobacco Use and the Risk of COVID-19
Clinical trial NCT04896918 · COMPLETED
Trial details
- NCT number
- NCT04896918
- Sponsor
- Karolinska Institutet
- Status
- COMPLETED
- Study type
- OBSERVATIONAL
- Start date
- 2015-10-01
- Primary completion
- 2023-12-31
- Enrollment
- 450000
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