Tobacco Use and COVID-19 Incidence in the Finnish General Population
Clinical trial NCT04915781 · COMPLETED
Trial details
- NCT number
- NCT04915781
- Sponsor
- Finnish Institute for Health and Welfare
- Status
- COMPLETED
- Study type
- OBSERVATIONAL
- Start date
- 2017-10-02
- Primary completion
- 2021-12-30
- Enrollment
- 60872
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