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BMJ. 1999 Dec 4;319(7223):1476-9.

National electronic Library for Health (NeLH)

Author information

  • 1National electronic Library for Health, Institute of Health Sciences, Oxford OX3 7LF.

Erratum in

  • BMJ 2000 Jan 29;320(7230):296.
PMID:
10582933
[PubMed - indexed for MEDLINE]
PMCID:
PMC1117204
Free PMC Article
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