Prevalence of Blindness, Visual Impairment in Chao Nan Area, China
Clinical trial NCT04143334 · COMPLETED
Trial details
- NCT number
- NCT04143334
- Sponsor
- Chinese University of Hong Kong
- Status
- COMPLETED
- Study type
- OBSERVATIONAL
- Start date
- 2012-04-01
- Primary completion
- 2015-12-01
- Enrollment
- 3700
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