Vitamin D Deficiency Epidemiological Research in Sichuan, China
Clinical trial NCT01457365 · UNKNOWN
Trial details
- NCT number
- NCT01457365
- Sponsor
- West China Hospital
- Status
- UNKNOWN
- Study type
- OBSERVATIONAL
- Start date
- 2011-12-01
- Primary completion
- 2012-02-01
- Enrollment
- 1500
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