Randomized Control Trial to Study the Efficacy of the Surgical Mask Versus the N95 Respirator to Prevent Influenza
Clinical trial NCT00756574 · COMPLETED
Trial details
- NCT number
- NCT00756574
- Sponsor
- McMaster University
- Status
- COMPLETED
- Phase
- Not Applicable
- Study type
- INTERVENTIONAL
- Start date
- 2008-10-01
- Primary completion
- 2009-04-01
- Enrollment
- 447
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