- Publisher copy:
- 10.1136/bmj.b2535
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- Journal:
- BMJ (Online)
- Volume:
- 339
- Issue:
- 7716
- Pages:
- 332-336
- Publication date:
- 2009-08-08
- DOI:
- EISSN:
-
1756-1833
- URN:
-
uuid:1ec0d4e9-5f6a-447a-9933-4909f6cc6c37
- Source identifiers:
-
178838
- Local pid:
- pubs:178838
- Language:
- English
- Copyright date:
- 2009
Journal article
Preferred reporting items for systematic reviews and meta-analyses: The PRISMA statement
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